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首页> 外文期刊>Journal of Applied Polymer Science >CATALYTIC HYDROGENATION OF NITRILE-BUTADIENE COPOLYMER EMULSION
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CATALYTIC HYDROGENATION OF NITRILE-BUTADIENE COPOLYMER EMULSION

机译：丁二烯共聚物乳液的催化加氢

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摘要

Two processes have been developed for the selective hydrogenation of the C=C bonds in nitrile-butadiene rubber emulsions (NBR emulsions) in the presence of a number of RuCl2(PPh3)(3) complex catalysts. One of the processes is carried out in a homogeneous system, in which an organic solvent, which can dissolve the NBR polymer and catalyst and which is compatible with the emulsion, is used. The other process is carried out in a heterogeneous system, in which an organic solvent which is capable of dissolving the catalyst and swelling the polymer particle but is not miscible with the aqueous emulsion phase, is used. In both processes, quantitative hydrogenation of the C=C bonds of the NBR emulsion is achieved in the presence of RuCl2(PPh3)(3). It is also found that the addition of certain types of additives can improve the activities of the Ru-based catalysts. (C) 1997 John Wiley & Sons, Inc. [References: 31]
机译：在许多RuCl2（PPh3）（3）络合催化剂的存在下，已经开发了两种方法用于丁腈橡胶乳液（NBR乳液）中C = C键的选择性加氢。其中一种方法是在均相系统中进行的，其中使用的有机溶剂可溶解NBR聚合物和催化剂，并且与乳液相容。另一方法在非均相系统中进行，其中使用能够溶解催化剂并溶胀聚合物颗粒但不与水乳液相混溶的有机溶剂。在这两种方法中，在RuCl2（PPh3）（3）的存在下，都可以实现NBR乳液C = C键的定量加氢。还发现添加某些类型的添加剂可以改善Ru基催化剂的活性。 （C）1997 John Wiley＆Sons，Inc. [参考：31]

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