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DE2539132A1 - HYDROGENATION OF POLYMERS - Google Patents

HYDROGENATION OF POLYMERS

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Publication number
DE2539132A1
DE2539132A1DE19752539132DE2539132ADE2539132A1DE 2539132 A1DE2539132 A1DE 2539132A1DE 19752539132DE19752539132DE 19752539132DE 2539132 ADE2539132 ADE 2539132ADE 2539132 A1DE2539132 A1DE 2539132A1
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Prior art keywords
hydrogenation
copolymer
hydrogenated
double bonds
copolymers
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DE19752539132
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DE2539132C2 (en
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Rudolf Dr Braden
Dieter Dr Oppelt
Herbert Dr Schuster
Joachim Dr Thoermer
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Bayer AG
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Bayer AG
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Priority to GB3596976Aprioritypatent/GB1558491A/en
Priority to IT5109676Aprioritypatent/IT1121670B/en
Priority to JP10377476Aprioritypatent/JPS5232095A/en
Priority to BE170289Aprioritypatent/BE845775A/en
Priority to FR7626671Aprioritypatent/FR2322878A1/en
Publication of DE2539132A1publicationCriticalpatent/DE2539132A1/en
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Translated fromGerman

Hydrierung von PolymerenHydrogenation of polymers

Gegenstand der Erfindung ist ein Verfahren zur Herstellung von partiell hydrierten Copolymeren aus einer & > ß-ungesättigten Carbonsäure bzw. deren Derivaten und einem Kohlenwasserstoffmit konjugierten Doppelbindungen.The invention relates to a process for the production of partially hydrogenated copolymers from a &> ß-unsaturated carboxylic acid or its derivatives and a hydrocarbonwith conjugated double bonds.

Aus dem DRP 570 980 und dem DRP 658 172 sind aus solchenMonomeren statistisch aufgebaute Copolymere bekannt. Man erhält sie durch Emulsions-Copolymerisation von z.B. Acrylnitrilmit konjugierten Dienen wie Butadien.From DRP 570 980 and DRP 658 172 are from suchMonomers, randomly structured copolymers are known. They are obtained by emulsion copolymerization of e.g. acrylonitrilewith conjugated dienes such as butadiene.

Aus der US-PS 3 700 637 ist bekannt, regelmäßig alternierendeCopolymere aus Butadien und Acrylnitril herzustellen und mit Hilfe von Rhodium-Komplexen als Katalysatoren unter Erhaltungder Nitrilgruppen zu hydrieren.US Pat. No. 3,700,637 discloses regularly alternatingProduce copolymers from butadiene and acrylonitrile and with the help of rhodium complexes as catalysts with preservationto hydrogenate the nitrile groups.

Im Rahmen der vorliegenden Erfindung sollen unter Copolymeren sowohl regelmäßig alternierende als auch statistisch aufgebauteCopolymere aus einer Ot,ß-ungesättigten Carbonsäure bzw. derenDerivaten und einem ungesättigten Kohlenwasserstoff mit konjugierten Doppelbindungen verstanden werden.In the context of the present invention, copolymers are intended to be both regularly alternating and also randomly constructedCopolymers of an Ot, ß-unsaturated carboxylic acid or theirDerivatives and an unsaturated hydrocarbon with conjugated double bonds are understood.

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Geeignete Carbonsäuren und deren Derivate sind z.B. (Methacrylsäure,Fumarsäure, deren Ester und Amide sowie die entsprechenden Carbonsäurenitrile, wie (Meth)-acrylnitril. Geeignetekonjugierte Diene sind z.B. Butadien, Isopren, Dimethyl-' butadien und Piperylen. Bevorzugt wird das erfindungsgemäßeVerfahren zur partiellen Hydrierung mit Copolymeren aus (Meth)-acrylsäure bzw. deren Derivaten und Butadien durchgeführt.Besonders bevorzugt sind Copolymere aus 90-45 Gew.-% Butadienund 10 - 55 Gew.-% Acrylnitril (jeweils bezogen auf die Gesamtmengedes Copolymeren).Suitable carboxylic acids and their derivatives are e.g. (methacrylic acid,Fumaric acid, its esters and amides and the corresponding carboxylic acid nitriles, such as (meth) acrylonitrile. Suitableconjugated dienes are e.g. butadiene, isoprene, dimethyl butadiene and piperylene. Preference is given to that according to the inventionProcess for partial hydrogenation carried out with copolymers of (meth) acrylic acid or its derivatives and butadiene.Copolymers of 90-45% by weight butadiene are particularly preferredand 10-55% by weight of acrylonitrile (each based on the total amountof the copolymer).

Die genannten Copolymeren enthalten an ungesättigten Struktureinheitenaußer den von der Carbonsäure bzw. deren Derivaten herrührenden funktioneilen Gruppen, z.B. der Nitrilgruppe, die beieiner 1.2-Verknüpfung der eingesetzten Diene entstehendenVinylgruppen und die bei einer 1.4-Verknüpfung gebildeten cis-oder transkonfigurierten olefinischen Doppelbindungen.The copolymers mentioned contain unsaturated structural unitsapart from the functional groups originating from the carboxylic acid or its derivatives, e.g. the nitrile group, which area 1.2 linkage of the dienes usedVinyl groups and the cis-or transconfigured olefinic double bonds.

Gemäß der vorliegenden Erfindung werden die Copolymeren in geeigneten organischen Lösungsmitteln gelöst und in Gegenwarteines Rhodium-Komplexes und gegebenenfalls Triphenylphosphinbei erhöhtem Druck und erhöhter Temperatur unter Erhaltung der Nitrilgruppe hydriert. Dabei wurde überraschend gefunden, daßbei Verwendung von Chlorbenzol als Lösungsmittel selektiv die Vinylgruppen und die trans-konf igurierten Doppelbindungenin den genannten Copolymeren vollständig hydriert werden. Bei Verwendung anderer Lösungsmittel werden dagegen die Vinylgruppenvollständig, die trans-konfigurierten Doppelbindungenjedoch nur partiell hydriert; je nach Wahl des Lösungsmittels beträgt der Hydrierungsgrad der trans-konfigurierten Doppelbindungen1o - 9o%.Es war für den Fachmann nicht vorhersehbar,daß bei einer unter gleichen Reaktionsbindungen durchgeführten Hydrierung durch den gezielten Einsatz bestimmterAccording to the present invention, the copolymers are dissolved in suitable organic solvents and hydrogenated in the presence of a rhodium complex and optionally triphenylphosphine at elevated pressure and elevated temperature while retaining the nitrile group. It has surprisingly been found that when chlorobenzene is used as the solvent, the vinyl groups and the trans-configured double bonds in the copolymers mentioned are selectively completely hydrogenated. If other solvents are used, however, the vinyl groups are completely hydrogenated, but the trans-configured double bonds are only partially hydrogenated; Depending on the choice of solvent, the degree of hydrogenation of the trans-configured double bonds is 10-90%. It was not foreseeable by the person skilled in the art that, in the case of a hydrogenation carried out with the same reaction bonds, the specific use of certain hydrogenation

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Lösungsmittel selektiv die Vinylgruppen vollständig und die trans-konfigurierten Doppelbindungen vollständig oder partiellhydriert werden können.Solvent selectively the vinyl groups completely and the trans-configured double bonds completely or partiallycan be hydrogenated.

Gegenstand der Erfindung ist ein Verfahren zur selektiven Hydrierungder Vinylgruppen und der trans-konfigurierten Doppelbindungen in Copolymeren aus einer oC,ß-ungesättigten Carbonsäure oderderen Derivaten und einem ungesättigten Kohlenwasserstoff mit konjugierten Doppelbindungen, dadurch gekennzeichnet, daß eine1-2o%ige Lösung der Copolymeren in geeigneten organischen Lösungsmittelnin Gegenwart von 0,01-10 Gew.-^ eines Katalysators auseiner Komplexverbindung von 1- oder 3-wertigen Rhodiumhalogeniden und gegebenenfalls 5-25 Gew.-% der im Komplex gebundenen Liganden(jeweils bezogen auf gelöstes Copolymeres) bei 5o-15o C und 5-300 atm hydriert wird. Die selektive Hydrierung der Vinylgruppenund der trans-konfigurierten Doppelbindungen in den Copolymeren wird in Chlorbenzol als Lösungsmittel durchgeführt. Indiesem Medium findet keine nachweisbare Hydrierung der cis-konfigurierten Doppelbindungen und der polaren Gruppen (wie z. B.Nitrilgruppen) statt. Wenn erfindungsgemäß Lösungen der Copolymerenin Lösungsmitteln, wie z. B. Toluol, Benzol, Xylol, Dimethylformamid, Essigester, MethyläthyIketon, Tetrahydrofuran,Cyclohexanon oder Methylenchlorid eingesetzt werden, erfolgt neben der vollständigen Hydrierung der Vinylgruppen nur einepartielle Hydrierung der trans-konfigurierten Doppelbindungen.The invention relates to a process for selective hydrogenationthe vinyl groups and the trans-configured double bonds in copolymers from an oC, ß-unsaturated carboxylic acid ortheir derivatives and an unsaturated hydrocarbon with conjugated double bonds, characterized in that a1-2o% solution of the copolymers in suitable organic solventsin the presence of 0.01-10 wt .- ^ of a catalysta complex compound of 1- or 3-valent rhodium halides and optionally 5-25% by weight of the ligands bound in the complex(in each case based on dissolved copolymer) is hydrogenated at 5o-15o C and 5-300 atm. The selective hydrogenation of the vinyl groupsand the trans configured double bonds in the copolymers is carried out in chlorobenzene as the solvent. Inno detectable hydrogenation of the cis-configured double bonds and the polar groups (e.g.Nitrile groups) instead. If, according to the invention, solutions of the copolymersin solvents such as B. toluene, benzene, xylene, dimethylformamide, ethyl acetate, methyl ethyl ketone, tetrahydrofuran,Cyclohexanone or methylene chloride are used, there is only one hydrogenation of the vinyl groups in addition to the complete hydrogenationpartial hydrogenation of the trans-configured double bonds.

Der Hydrierungsgrad dieser Doppelbindungen ist lösungsmittelabhängigund nimmt in der Reihe Benzol^Dimethylformamid, Xylol >Essigester > Methyläthylketon, Cyclohexanon >Tetrahydrofuran, Toluol > Methylenchlorid von rund 90 auf etwa 10 %ab. Lösungsmittelgemische sind für das Verfahren der Erfindung nicht erforderlich. Sie können aber selbstverständlich ebenfallseingesetzt werden.The degree of hydrogenation of these double bonds depends on the solvent and decreases in the series benzene dimethylformamide, xylene> ethyl acetate> methyl ethyl ketone, cyclohexanone> tetrahydrofuran, toluene> methylene chloride from around 90 to around 10%. Mixtures of solvents are not required for the process of the invention. Of course, they can also be used.

Die Lösungen enthalten 1-20 Gew.-%, vorzugsweise 2,5-10 Gew.-#der Copolymeren, bezogen auf das oben beschriebene, für das erfindungsgemäße Verfahren jeweils einzusetzende Lösungsmittel.The solutions contain 1-20% by weight, preferably 2.5-10% by weightof the copolymers, based on the above-described solvent to be used in each case for the process according to the invention.

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Für die Hydrierung werden den Lösungen der Copolymeren alsKatalysator 0,01-10 Gew,-96, bevorzugt 0,1-5 Gew.-% (bezogenauf gelöstes Copolymer) einer Komplexverbindung von 1- oder 3-wertigen Rhodiumhalogeniden zugesetzt. GeeigneteKomplexverbindungen sind solche der allgemeinen Formel IFor the hydrogenation, the solutions of the copolymers are used asCatalyst 0.01-10% by weight, -96, preferably 0.1-5% by weight (based onon dissolved copolymer) of a complex compound of 1- or 3-valent rhodium halides added. SuitableComplex compounds are those of the general formula I.

worin R C1-C8-AIlCyI, Cg-C1^-Aryl oder C^-C1^-Aralkyl,wherein RC1 -C8 -AIlCyI, Cg-C1 ^ -aryl or C ^ -C1 ^ -aralkyl,

B P, As, S oder S=O undB P, As, S or S = O and

X Cl oder Br bedeuten undX mean Cl or Br and

m den Wert 2 oder 3 undm the value 2 or 3 and

η den Wert 1 oder 3 hat.η has the value 1 or 3.

Bevorzugte Komplexverbindungen dieser Art sind Tristriphenylphosphin)-rhodium(I)-chlorid,Tristriphenylphosphin)-rhodium (Ill)-chlorid und Tris(dimethylsulfoxid)-rhodium(III)-chlorid.Preferred complex compounds of this type are tristriphenylphosphine) rhodium (I) chloride,Tristriphenylphosphine) rhodium (III) chloride and tris (dimethylsulfoxide) rhodium (III) chloride.

Der Druck, bei dem die erfindungsgemäße Hydrierung durchgeführt wird, kann über einen weiten Bereich variiert werden. Geeignetsind Drücke zwischen 5 und 300 atm, vorzugsweise zwischen und 100 atm. Hydriert wird bei Temperaturen zwischen 50 und 1500C,bevorzugt bei 75 bis 1150C. Unter diesen Bedingungen ist dieselektive Hydrierung nach ca. 3 bis 7 Stundende endet.The pressure at which the hydrogenation according to the invention is carried out can be varied over a wide range. Pressures between 5 and 300 atm, preferably between and 100 atm, are suitable. The hydrogenation is carried out at temperatures between 50 and 150° C., preferably at 75 to 115° C. Under these conditions, the selective hydrogenation ends after about 3 to 7 hours.

Zur Abtrennung des Katalysators kann das in der DT-AS 1 558 beschriebene Verfahren angewendet werden.The process described in DT-AS 1 558 can be used to separate off the catalyst.

Das Hydrierungsprodukt wird aus der Reaktionslösung durch Behandlung mit Wasserdampf oder durch Eingießen in Methanolabgetrennt und anschließend bei vermindertem Druck und etwa 700C getrocknet.The hydrogenation product is separated from the reaction solution by treatment with steam or by pouring into methanol and then dried under reduced pressure at about 700 C.

Die qualitative und quantitative Ermittlung der hydrierten bzw. noch vorhandenen Doppelbindungen in den erfindungsgemäßhydrierten Copolymeren erfolgt durch IR-SpektroskopiseheThe qualitative and quantitative determination of the hydrogenated or still present double bonds in the according to the inventionhydrogenated copolymers are carried out by IR spectroscopy

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Analyse. Zur weiteren Charakterisierung werden die Jodzahl und mittels TMA- und Schubmodulmessung die Glasübergangstemperaturder Hydrierungsprodukte bestimmt.Analysis. The iodine number and the glass transition temperature using TMA and shear modulus measurements are used for further characterizationthe hydrogenation products determined.

Die nach dem Verfahren der vorliegenden Erfindung hydrierten Copolymeren weisen eine erhöhte Zugfestigkeit bei erhöhterBruchdehnung und zusätzlich eine verbesserte Elastizität auf. Es sind vulkanisierbare Kautschuke, die als temperaturbeständigeMaterialien, z.B. auf dem Dichtungssektor eingesetzt werden können.The copolymers hydrogenated by the process of the present invention exhibit increased tensile strength with increased tensile strengthElongation at break and, in addition, improved elasticity. There are vulcanizable rubbers that are considered to be temperature resistantMaterials, e.g. can be used in the sealing sector.

In den folgenden Beispielen werden drei verschiedene Acrylnitril-Butadien-Copolymereeingesetzt. Die Prozentangaben sind stets Gewichtsprozent.The following examples use three different acrylonitrile-butadiene copolymersused. The percentages are always percentages by weight.

Die Mengenangaben über Katalysatoren und Triphenylphosphin beziehensich jeweils auf das gelöste Copolymere.The quantitative data refer to catalysts and triphenylphosphineeach on the dissolved copolymer.

Copolymer I: aus 82%Butadien und 18%Acrylnitril Copolymer II: aus 72 % Butadien und 28%AcrylnitrilCopolymer III:aus 62%Butadien und 38%AcrylnitrilCopolymer I: from 82% butadiene and 18% acrylonitrile Copolymer II: from 72% butadiene and 28% acrylonitrile Copolymer III: from 62% butadiene and 38% acrylonitrile

(jeweils bezogen auf die Gesamtmenge des Copolymeren).(in each case based on the total amount of the copolymer).

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Beispiel 1example 1

Eine 2,5 %ige Lösung des Copolymeren I in Chlorbenzol wirdmit 1%ZIc6H5),p73 Rh1Cl und 10%(C6H5J3P versetzt und 5,5'Stunden bei 1000C und 60 atm hydriert.A 2.5% solution of the copolymer I in chlorobenzene is mixedwith 1%ZIc 6 H5 ), p73 Rh1 Cl and 10% (C6 H5 J3 P and 5.5 'hours at 1000 C and 60 atm hydrated.

Nach beendeter Hydrierung wird der Katalysator gemäß DT-AS 1 558 395 abgetrennt. Durch Eingießen der Reaktionslösungin Methanol werden die Reaktionsprodukte ausgefällt und anschließend unter vermindertem Druck bei ca. 700C getrocknet.After the hydrogenation has ended, the catalyst is separated off in accordance with DT-AS 1,558,395. The reaction products are precipitated by pouring the reaction solution into methanol and then driedat about 70 ° C. under reduced pressure.

Das erhaltene Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product obtained has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 100%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 100% of the trans double

bindungenties

Glasübergangstemperatur: T_ = -310CGlass transition temperature: T_ = -310 C

e Jodzahl: Jz = 14e iodine number: Jz = 14

Die Aufarbeitung und Charakterisierung der Hydrierungsprodukte der folgenden Beispiele erfolgt wie in Beispiel 1.The hydrogenation products of the following examples are worked up and characterized as in Example 1.

Beispiel 2Example 2

Eine 2,5 S&Lge Lösung des Copolymeren II in Chlorbenzol wirdmit 1%Z£C6H5)5P_73 Rh1Cl und 10%(C6H5J3P versetzt und 4,5Stunden bei 100°C und 60 atm hydriert.A 2.5 S & Lge solution of the copolymer II in chlorobenzene is mixed with 1% Z £ C6 H5 )5 P_73 Rh1 Cl and 10% (C6 H5 J3 P and 4.5 hours at 100 ° C and 60 atm hydrated.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 100%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 100% of the trans double

bindungenties

Glasübergangstemperatur: T=- 300C Jodzahl: Jz = 26Glass transition temperature: T = - 300 C Iodine number: Jz = 26

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Beispiel 3Example 3

Eine 2,5 %ige Lösung des Copolymeren II in Chlorbenzol wird mit1 % Z(C6H5)3p73 Rh111Cl3 und 10%(C6H5J3P versetzt und 5,5Stunden bei 1000C und 60 atm hydriert.A 2.5% solution of the copolymer II in chlorobenzene with 1% Z (C6 H5)3 Cl3 p73111 Rh, and10% (C6 H5 J3 P were added and 5.5 hours at 1000 C and 60 atm hydrogenated.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 100%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 100% of the trans double

bindungenties

Glasübergangstemperatur: T = -300CJodzahl: Jz = -22Glass transition temperature: T = -300 C Iodine number: Jz = -22

Beispiel 4Example 4

Eine 2,5%Lösung des Copolymeren III in Chlorbenzol wird mit1 % ZlC6H5)3p73 Rh1Cl und 10%(C6H5J3P versetzt und 6 Stundenbei 100 C und 60 atm hydriert.A 2.5% solution of the copolymer III in chlorobenzene is mixed with 1% ZlC6 H5 )3 p73 Rh1 Cl and 10% (C6 H5 J3 P and hydrogenated at 100 ° C. and 60 atm for 6 hours.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 100%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 100% of the trans double

bindungenties

Glasübergangstemperatur: T = -270CJodzahl: Jz = 22Glass transition temperature: T = -270 C Iodine number: Jz = 22

Beispiel 5Example 5

Eine 2,5 %ige Lösung des Copolymeren'I in Toluol wird mit 1%ZXCgH5)3P73 Rh1Cl und 10%(CgH^P versetzt und 4,5 Stunden bei100 C und 60 atm hydriert.A 2.5% solution of Copolymeren'I in toluene is mixedwith 1%ZXCgH 5 )3 P73 Rh1 Cl and 10% (CgH ^ P and hydrogenated at 100 ° C. and 60 atm for 4.5 hours.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 48%trans-DoppelbindungenGlasübergangstemperatur: T = -430C
Jodzahl: Jz = 50
Hydrogenation degree:100% vinyl and48% trans double bonds glass transition temperature: T = -430 C.
Iodine number: Jz = 50

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Beispiel 6Example 6

Eine 2,5 %ige Lösung des Copolymeren II in Toluol wird mit 1%/Ic6E3)JPj^Rh1Cl und 10%(C6H5)^P versetzt und 5,2 Stundenbei 100 C und 60 atm hydriert.A 2.5% solution of the copolymer II in toluene ismixed with 1% / Ic6 E3 ) JPj ^ Rh1 Cl and 10% (C6 H5 ) ^ P and 5.2 hours at 100 ° C. and 60 atm hydrogenated.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 42%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 42% of the trans double

bindungen Glasübergangstemperatur: T = -260Cbonds Glass transition temperature: T = -260 C

Jodzahl: Jz = 95Iodine number: Jz = 95

Beispiel 7Example 7

Eine 2,5 %ige Lösung des Copolymeren III in Toluol wird mit 1%/Xc^H5)3p7, Rh1Cl und 10%
100 C und 60 atm hydriert.
A 2.5% solution of the copolymer III in toluene is made with 1% / Xc ^ H5 )3 p7, Rh1 Cl and 10%
Hydrogenated at 100 C and 60 atm.

Rh1Cl und 10%(C6H5)^P versetzt und 5 Stunden beiRh1 Cl and 10% (C6 H5 ) ^ P added and 5 hours at

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 30%der trans-Doppelbin-Degree of hydrogenation: 100% of the vinyl and 30% of the trans double bond

dungenfertilize

Glasübergangstemperatur: T = -260CJodzahl: Jz = 60Glass transition temperature: T = -260 C Iodine number: Jz = 60

Beispiel 8Example 8

Eine2,5%ige Lösung des Copolymeren II in Chlorbenzol wird mit1%/TCH3)2S=073RhIIICl3 und 1o%(CH^)2S=O versetzt und 7,5Stunden bei 100 C und 60 atm hydriert.A2.5% solution of the copolymer II in chlorobenzene ismixed with 1% / TCH3 )2 S = 073 RhIII Cl3 and 10% (CH ^)2 S = O and at 100 ° C. for 7.5 hours 60 atm hydrated.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 1OO % der Vinyl- und 1OO % der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 100% of the trans double

bindungenGlasübergangstemperatur:T = -29°cbonds Glasstransition temperature: T = -29 ° c

Jodzahl:Jz= 29Iodine number:Jz = 29

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Beispiel 9Example 9

Eine 2,5 %ige Lösung des Copolymeren II in Benzol wird mit 1%/Xc6H5),p73 Rh111Cl3 und 10%(C6H5),P versetzt und 6,2 Stundenbei 1000C und 60 atm hydriert.A 2.5% solution of the copolymer II in benzene ismixed with 1% / Xc6 H5 ), p73 Rh111 Cl3 and 10% (C6 H5 ), P and at 100° C. for 6.2 hours and 60 atm hydrogenated.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 90%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 90% of the trans double

bindungenties

Glasübergangstemperatur: T = -30 C Jodzahl: Jz = 19Glass transition temperature: T = -30 C Iodine number: Jz = 19

Beispiel 10Example 10

Eine 2,5 $ige Lösung des Copolymeren II in Essigester wird mit1%ZlC6H5)3p73 Rh1Cl und 10%(C6H5)3P versetzt und 5,5Stunden bei 1000C und 60 atm hydriert.A 2.5% solution of the copolymer II in ethyl acetate is mixedwith 1%ZlC 6 H5 )3 p73 Rh1 Cl and 10% (C6 H5 )3 P and at 100° C. and 60 for 5.5 hours atm hydrogenated.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 50%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 50% of the trans double

bindungenties

Glasübergangstemperatur: T = -380CJodzahl Jz = 77Glass transition temperature: T = -380 C iodine number Jz = 77

Beispiel 11Example 11

Eine 2,5 %ige Lösung des Copolymeren II in Methyläthylketonwird mit 1%ZXc5H5J3Pj3 Rh1Cl und 10%(C5H5J3P versetztund 6 Stunden bei 1000C und 60 atm hydriert.A 2.5% solution of the copolymer II in methyl ethyl ketone is mixedwith 1%ZXc 5 H5I 3 Pj3 Rh1 Cl and 10% (C5 H5 I3 P andhydrogenated at 100 ° C. and 60 atm for 6 hours .

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 40%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 40% of the trans double

bindungenties

Glasübergangstemperatur: T =-39°c Jodzahl: Jz = 119Glass transition temperature: T =-39 ° c Iodine number: Jz = 119

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Beispiel 12 ^Example 12 ^

Eine 2,5 %ige Lösung des Copolymeren II in Xylol wird mit 1%Z^C6Hc)3EZ5 Rh Cl und 10 96 (C6H5)^P versetzt und 6,5
Stunden bei 1000C und 60 atm hydriert.
A 2.5% solution of the copolymer II in xylene ismixed with 1% Z ^ C6 Hc)3 EZ5 Rh Cl and 10 96 (C6 H5 ) ^ P and 6.5
Hydrogenated for hours at 100° C. and 60 atm.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 59%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 59% of the trans double

bindungenties

Glasübergangstemperatur: T = -39°C Jodzahl Jz =Glass transition temperature: T = -39 ° C iodine number Jz =

Beispiel 13Example 13

Eine 2,5 %ige Lösung des Copolymeren II in Dimethylformamid
wird mit 1 96 ZlC6H5UPZ3 Rh1Cl und 10%(C5H5)^P versetztund 4 Stunden bei 1000C und 60 atm hydriert.
A 2.5% solution of the copolymer II in dimethylformamide
1 96 ZlC6 H5 UPZ3 Rh1 Cl and 10% (C5 H5 ) ^ P are added and themixture is hydrogenated at 100 ° C. and 60 atm for 4 hours.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 59 96 der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 59 96 of the trans double

bindungenties

Glasübergangstemperatur : T0. = -42 CGlass transition temperature: T0 . = -42 C

Jodzahl: Jz =Iodine number: Jz =

Beispiel 14Example 14

Eine 2,5 %ige Lösung des Copolymeren II in Cyclohexanon wirdmit 1 % ZlC6H5J3Pj3 Rh1Cl und 10%(C6H5UP versetzt und
4 Stunden bei 1000C und 60 atm hydriert.
A 2.5% solution of the copolymer II in cyclohexanone is mixed with 1% ZlC6 H5 J3 Pj3 Rh1 Cl and 10% (C6 H5 UP and
Hydrogenated for 4 hours at 100° C. and 60 atm.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 38%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 38% of the trans double

bindungenties

Glasübergangstemperatur: Tg =-4i°C Jodzahl: JZ =Glass transition temperature: Tg = -4i ° C Iodine number: JZ =

Le A 16 349 - 10 -Le A 16 349 - 10 -

709811/0881709811/0881

Beispiel 15Example 15MM.

Eine 2,5%±geLösung des Copolymeren II in Tetrahydrofuran wirdmit 1%ZIc6H5)3p73 Rh1Cl und 10%(CgH5)^P versetzt und3,2 Stunden bei 1000C und 60 atm. hydriert.A2.5% ± ge solution of the copolymer II in tetrahydrofuran is treated with1% ZIc6 H5)3 Cl p73 Rh1 and10% (CGH5) ^ P and 3.2 hours at 1000 C and 60 atm . hydrogenated.

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100%der Vinyl- und 31%der trans-Doppel-Degree of hydrogenation: 100% of the vinyl and 31% of the trans double

b indungen.ties.

Glasübergangstemperatur: Tg = -39°cJodzahl Jz = 113Glass transition temperature: Tg = -39 ° CIodine number Jz = 113

Beispiel 16Example 16

Eine 2,5%ige Lösung des Copolymeren II in Methylenchloridwird mit 1 % /"(C6Hg)3PJ3 Rh1Cl und 10 % (CgH5)3P versetzt und6.5 Stunden bei 1OO°C und 60 atm hydriert.A 2.5% solution of the copolymer II in methylene chloride ismixed with 1% (C 6 Hg)3 PJ3 Rh1 Cl and 10% (CgH5 )3 P and hydrogenated for 6.5 hours at 100 ° C. and 60 atm .

Das Hydrierungsprodukt hat folgende Eigenschaften:The hydrogenation product has the following properties:

Hydrierungsgrad: 100 % der Vinyl- und 12 % der transDoppelbindungenDegree of hydrogenation: 100% of the vinyl and 12% of the trans double bonds

Glasübergangstemperatur: T = -40°C Jodzahl: Jz = 160Glass transition temperature: T = -40 ° C Iodine number: Jz = 160

Die Ergebnisse der Beispiele 1-16 sind in der folgenden Tabelle 1 zusanmengefaßt.The results of Examples 1-16 are summarized in Table 1 below.

Le A 16 349 - 11 -Le A 16 349 - 11 -

709811/0881709811/0881

Tabelle 1Table 1

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BeispielexampleCopolymerCopolymerlösungsmittelsolventKatalysatorcatalystHydrieru
Vinyl-
Hydrogenation
Vinyl-
ngsgrad (%)
trans-Doppelb.
degree (%)
trans double
TTJzJz
11II.ChlorbenzolChlorobenzene/"(C6H5) 3Pj3 Fh1Cl/ "(C6 H5 ) 3Pj3 Fh1 Cl100100100100-31-311414th22IIIIIlIlIlIl100100100100-30-302626th33HHηη/^(C1J-H1-) .^Py _Rn Cl_/ ^ (C1 JH1 -). ^ Py _Rn Cl_1001001CO1CO-30-302222nd44thIIIIIIηηZtC6H5)3PZ Ph1ClZtC6 H5 )3 PZ Ph1 Cl100100100100-27-272222nd55II.Toluoltolueneηη1001004848-43-43505066thIIIINNNN1001004242-26-26959577thIIIIIINNηη1001003838-26-26606088thIIIIChlorbenzolChlorobenzene/"(CH3)2S=O/3Fh Cl/ "(CH3 )2 S = O /3 Fh Cl100100100100-29-29292999IIIIBenzolbenzene/-(C6H5) HZ3Rh111Cl3/ - (C6 H5 ) HZ3 Rh111 Cl31001009090-30-301919th1010IIIIEssigesterEthyl acetate/"(C6H5) 3PZ3Fh1Cl/ "(C6 H5 ) 3PZ3 Fh1 Cl1001005050-38-3877771111nnMethyläthy !ketonMethyl ethyl ketoneHH1001004040-39-391191191212thIIIIXylolXyleneηη1001005959-39-3973731313thnnDimethylfbrmanddDimethylfbrmanddHH1001005959-42-421441441414thππCyclohexanonCyclohexanoneIlIl1001003838-41-411141141515thIIIITetrahydrofuranTetrahydrofuranIlIl1001003131-39-391131131616IIIIMethylenchloridMethylene chlorideHH1001001212th-40-40160160

O' CDO'CD

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Claims (6)

Translated fromGerman
PatentansprücheClaimsΛ JVerfahren zur selektiven Hydrierung der Vinylgruppen undder trans-konfigurierten Doppelbindungen in Copolymerenaus einer ^C, ß-ungesättigten Carbonsäure oder deren Derivatenund einem ungesättigten Kohlenwasserstoff mit konjugierten Doppelbindungen, dadurch gekennzeichnet, daß eine1 - 20#ige Lösung der Copolymeren in geeigneten organischen Lösungsmitteln in Gegenwart von O,O1 - 10 Gew.-% einesKatalysators aus einer Komplexverbindung von 1- oder 3-wertiger Rhodiumhalogeniden und ggf. 5-25 Gew.-% derim Komplex gebundenen Liganden (jeweils bezogen auf gelöstes Copolymeres) bei 50 - 1500C und 5 - 300 atm,hydriert wird.Λ J Process for the selective hydrogenation of the vinyl groups and the trans-configured double bonds in copolymers of a ^ C, ß-unsaturated carboxylic acid or its derivatives and an unsaturated hydrocarbon with conjugated double bonds, characterized in that a 1-20 # solution of the copolymers in suitable organic solvents in the presence of O, O1 - 10% by weight of a catalyst made from a complex compound of 1- or 3-valent rhodium halides and optionally 5-25% by weight of the ligands bound in the complex (each based on the dissolved copolymer) at 50-1500 C and 5 to 300 atm, is hydrogenated.2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man Rhodiumkomplexverbindungen mit schwefelhaltigen Ligandenverwendet.2. The method according to claim 1, characterized in that one rhodium complex compounds with sulfur-containing ligandsused.3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet,daß chlorsubstituierte aromatische Lösungsmittel mit6-12 C-Atomen verwendet werden und eine selektive, vollständige Hydrierung der Vinylgruppen und der transkonfiguriertenDoppelbindungen erfolgt.3. The method according to claim 1 and 2, characterized in thatthat chlorine-substituted aromatic solvents with6-12 carbon atoms are used and a selective, complete hydrogenation of the vinyl groups and the transconfiguredDouble bonds takes place.4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß alsLösungsmittel Toluol, Benzol, Essigester, Methyläthylketon,Xylol, Dimethylformamid, Cyclohexanon, Tetrahydrofuran, Methylenchlorid und andere verwendet und je nach Wahl desLösungsmittels neben den Vinylgruppen zwischen 10 - 90% der trans-konfigurierten Doppelbindungen hydriert werden.4. The method according to claim 1, characterized in that the solvent used is toluene, benzene, ethyl acetate, methyl ethyl ketone, xylene, dimethylformamide, cyclohexanone, tetrahydrofuran, methylene chloride and others and depending on the choice of solvent in addition to the vinyl groups between 10 - 90% of the trans configured double bonds are hydrogenated.Le A 16 349 - 13 -Le A 16 349 - 13 -709811/0881709811/0881INSPECTEDINSPECTEDJIrJIr5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das zu hydrierende Copolymere ein Copolymeres aus (Meth)-acrylsäure,deren Estern und Amiden oder (Meth)-acrylnitril und Butadien, Isopren, Dimethylbutadien oder Piperylen ·ist.5. The method according to claim 1, characterized in that the copolymer to be hydrogenated is a copolymer of (meth) acrylic acid,their esters and amides or (meth) acrylonitrile and butadiene, isoprene, dimethylbutadiene or piperyleneis.6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zur Hydrierung ein Butadien-Acrylnitril-Copolymer aus90 - 45 Gew.-# Butadien und 10-55 Gew.-% Acrylnitril(jeweils bezogen auf die Gesamtmenge des Copolymeren) eingesetzt wird.6. The method according to claim 1, characterized in that a butadiene-acrylonitrile copolymer for the hydrogenation90-45 wt% butadiene and 10-55 wt% acrylonitrile(in each case based on the total amount of the copolymer) is used.Le A 16 349 - 14 -Le A 16 349 - 14 -7W811/08817W811 / 0881
DE197525391321975-09-031975-09-03 Use of hydrogenated diene copolymers as temperature-resistant materials in the sealing sectorExpiredDE2539132C2 (en)

Priority Applications (7)

Application NumberPriority DateFiling DateTitle
DE19752539132DE2539132C2 (en)1975-09-031975-09-03 Use of hydrogenated diene copolymers as temperature-resistant materials in the sealing sector
NL7609679ANL186327C (en)1975-09-031976-08-31 METHOD FOR MANUFACTURING THERMALLY STABLE SEALS
GB3596976AGB1558491A (en)1975-09-031976-08-31Hydrogenation of polymers
IT5109676AIT1121670B (en)1975-09-031976-09-01 PROCEDURE FOR HYDROGENING ETHYLENE UNSATURATED COPOLYMERS
JP10377476AJPS5232095A (en)1975-09-031976-09-01Method for hydrogenation of polymer
BE170289ABE845775A (en)1975-09-031976-09-02 HYDROGENATION OF POLYMERS
FR7626671AFR2322878A1 (en)1975-09-031976-09-03 HYDROGENATION OF POLYMERS

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DE19752539132DE2539132C2 (en)1975-09-031975-09-03 Use of hydrogenated diene copolymers as temperature-resistant materials in the sealing sector

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DE2539132C2 DE2539132C2 (en)1987-04-09

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BE (1)BE845775A (en)
DE (1)DE2539132C2 (en)
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BE845775A (en)1977-03-02
GB1558491A (en)1980-01-03
NL7609679A (en)1977-03-07
NL186327C (en)1990-11-01
FR2322878A1 (en)1977-04-01
FR2322878B1 (en)1980-05-23
JPS5232095A (en)1977-03-10
IT1121670B (en)1986-04-10
DE2539132C2 (en)1987-04-09
NL186327B (en)1990-06-01

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