Selectivity of the OsHCl(CO)(O_2)(PCy_3)_2 Catalyzed Hydrogenation of Nitrile-Butadiene Rubber

J. Scott Parent; Neil T. Mcmanus; Garry L. Rempel

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Selectivity of the OsHCl(CO)(O_2)(PCy_3)_2 Catalyzed Hydrogenation of Nitrile-Butadiene Rubber

机译：OsHCl（CO）（O_2）（PCy_3）_2催化丁腈橡胶加氢的选择性

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A new homogeneous catalyst precursor has been discovered for the hydrogenation of carbon-carbon unsaturation resident within acrylonitrile-butadiene copolymers. The hydrido-phosphine complex OsHCl(CO)(O_2)(PCy_3)_2 (1) selectively and quantitatively saturates olefin, leaving the copolymer's nitrile functionality intact. However, the process suffers from an undesirable crosslinking reaction that is not demonstrated by the established rhodium technology. The extent of this crosslinking is dependent on the process conditions and can be minimized by operating with a low catalyst concentration and high H_2 pressure. kinetic studies have aidentified a previously unknown unexpected influence of olefin on the polymer crosslinking process. In light of this new information, the prevailing mechanism for this class of reactions has been reconsidered.

机译：已经发现了一种新的均相催化剂前体，用于氢化丙烯腈-丁二烯共聚物中的碳-碳不饱和键。氢化膦配合物OsHCl（CO）（O_2）（PCy_3）_2（1）选择性地和定量地饱和烯烃，使共聚物的腈官能度保持完整。然而，该方法遭受不希望的交联反应，这是现有的铑技术所不能证明的。这种交联的程度取决于工艺条件，并且可以通过在低催化剂浓度和高H_2压力下操作来最小化。动力学研究确定了烯烃对聚合物交联过程的以前未知的意外影响。根据这些新信息，已经重新考虑了此类反应的主要机制。

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来源
《Journal of Applied Polymer Science》 |2001年第9期|共9页
作者
J. Scott Parent; Neil T. Mcmanus; Garry L. Rempel;
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正文语种 eng
中图分类高分子化学（高聚物）;高分子化合物产品;有机化学;
关键词
hydrogenation; catalytic; nitrile rubber; crosslinking;

机译：氢化;催化;丁腈橡胶;交联;

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1. Selectivity of the OsHCl(CO)(O_2)(PCy_3)_2 Catalyzed Hydrogenation of Nitrile-Butadiene Rubber [J] . J. Scott Parent, Neil T. Mcmanus, Garry L. Rempel Journal of Applied Polymer Science . 2001,第9期

机译：OsHCl（CO）（O_2）（PCy_3）_2催化丁腈橡胶加氢的选择性
2. Catalytic hydrogenation of methyl methacrylate-g-natural rubber (MMA-g-NR) in the presence of OsHCl(CO) (O_2) (PCy3)2 [J] . Suwadee Kongparakul, Pattarapan Prasassarakich, Garry L.Rempel Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications . 2008,第1a2期

机译：在OsHCl（CO）（O_2）（PCy3）2存在下对甲基丙烯酸甲酯-g-天然橡胶（MMA-g-NR）进行催化加氢
3. HIGHLY ACTIVE AND REUSABLE RHODIUM CATALYST FOR SELECTIVE HYDROGENATION OF NITRILE-BUTADIENE RUBBER [J] . Cao Peng, Su Lin, Li Cui, Rubber Chemistry and Technology . 2015,第4期

机译：用于丁腈橡胶选择性加氢的高活性可重复使用的铑催化剂
4. Research on Mechanical Properties, Compatibility, Flame Retardancy - Hot-Air Ageing Resistance of Hydrogenated Nitrile-Butadiene Rubber/Chloroprene Rubber Blends [C] . Tengteng Wang, Guolun Zhong, Liling Zhou International Conference on Advanced Engineering Materials and Technology . 2013

机译：氢化丁腈 - 丁二烯橡胶/氯丁烯橡胶混合物的机械性能，相容性，阻燃 - 热风老化电阻研究
5. Polymer formation, deactivation, and ethylene selectivity decline in palladium/aluminum oxide catalyzed selective acetylene hydrogenation. [D] . LeViness, Stephen Claude. 1989

机译：在钯/氧化铝催化的选择性乙炔加氢中，聚合物的形成，失活和乙烯的选择性下降。
6. Enhanced Physical and Mechanical Properties of Nitrile-Butadiene Rubber Composites with [O] . Egor A. Kapitonov, Natalia N. Petrova, Vasilii V. Mukhin, 2021

机译：增强丁腈橡胶复合材料的物理和力学性能
7. OsHCl(CO)(PiPr3)2 as catalyst for ring-opening metathesis polymerization (ROMP) and tandem ROMP-hydrogenation of norbornene and 2,5-norbornadiene [O] . Cobo Noelia, Esteruelas Miguel A., González Fernando, 2013

机译：OsHCl（CO）（PiPr3）2作为催化剂用于降冰片烯和2,5-降冰片二烯的开环复分解聚合（ROMP）和串联ROMP加氢

Selectivity of the OsHCl(CO)(O_2)(PCy_3)_2 Catalyzed Hydrogenation of Nitrile-Butadiene Rubber

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