Selective Catalytic Hydrogenation of C＝C in Poly (butadiene-b-methyl Methacrylate)Copolymer

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (5): 771.

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Selective Catalytic Hydrogenation of C＝C in Poly (butadiene-b-methyl Methacrylate)Copolymer

ZHOU Qing-Ye, ZHANG Bang-Hua, SONG Mou-Dao, LI Chun-Gang, HE Bing-Lin

Instititute of Polymer Chemistry, Nankai University, Tianjin, 300071

Received:1993-05-18 Revised:1993-08-24 Online:1994-05-24 Published:1994-05-24

Abstract

Abstract: This paper studies catalytic hydrogenation of C＝C　in poly(butadiene-b-methyl methacrylate) copolymer by using RhCl[P(C₆H₅)₃]₃ as the catalyst.The results which come from the IR,NMR,DMA and chemical analysis demonstrate that RhCl[P(C₆H₅)₃]₃ is an ef-ficient catalyst in homogeneous catalytic hydrogenation,and the reaction possesses excellent selectivity.The catalyst provides quantitative hydrogenation of C=Cunsaturation without any hydrogenation of the ester functionality. After completely hydrogenated,the weight percentage of unreduced C＝C is less than 0.71%.

Key words: Poly(butadiene-b-methyl methacrylate) copolymer, RhCl[P(C₆H₅)₃]₃, Catalyst, Selective hydrogenation

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ZHOU Qing-Ye, ZHANG Bang-Hua, SONG Mou-Dao, LI Chun-Gang, HE Bing-Lin. Selective Catalytic Hydrogenation of C＝C in Poly (butadiene-b-methyl Methacrylate)Copolymer[J]. Chem. J. Chinese Universities, 1994, 15(5): 771.

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Selective Catalytic Hydrogenation of C＝C in Poly (butadiene-b-methyl Methacrylate)Copolymer

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