Ring-opening copolymerization of CHO (cyclohexene oxide) and MA (maleic anhydride) catalyzed by the Co(III)-Salalen complex

被引：6

作者：

Zhang, Xingmei ^{[1
]}

Liu, Yaoju ^{[1
]}

Chen, Yan ^{[1
]}

Zhang, Zhao ^{[1
]}

Fan, Daidi ^{[1
]}

Lu, Xingqiang ^{[1
]}

机构：

[1] NW Univ Xian, Sch Chem Engn, Shaanxi Key Lab Degradable Med Mat, Xian 710069, Shaanxi, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2014年 / 48卷

基金：

高等学校博士学科点专项科研基金;

关键词：

Co(III)-Salalen complex; Copolymerization of CHO and MA; Polyester and poly(ester-co-ether); ALTERNATING COPOLYMERIZATION; POLYESTERS; EPOXIDES;

D O I：

10.1016/j.inoche.2014.08.018

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new complex [Co(L)(OAc)] (1), obtained from the coordination and subsequent oxidation reactions with Co(OAc)(2) and the asymmetrical Salalen ligand H2L (H2L: (E)-2-((2-3,5-di-tert-butyl-2-hydroxybenzylideneamino)phenylamino)methyl)-4,6-di-tert-butylphenol), is shown to be an effective catalyst for ring-opening copolymerization of CHO (cyclohexene oxide) and MA (maleic anhydride) in the presence of one of the three co-catalysts (DMAP (4-(dimethylamino) pyridine), TPP (triphenylphosphine) and n-Bu4NBr). 1/DMAP gives relatively higher CHO monomer conversions than that of 1/TPP or 1/n-Bu4NBr, and especially on the condition of lower temperature (50-80 degrees C), shorter reaction time (75 min) or lower catalyst feeding molar ratio (CHO:MA:1:DMAP = 500:500:1:1), all the solution polymerizations afford perfectly alternating polyester. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：69 / 72

页数：4

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