Ring-opening copolymerization of CHO and MA catalyzed by the asymmetrical Cr(III)-bis-Schiff-base complex

被引:9
|
作者
Liu, Jiang [1 ]
Zhou, Rui [1 ,2 ]
Jia, Li [1 ]
Fan, Daidi [1 ]
Lu, Xingqiang [1 ]
机构
[1] Northwest Univ Xian, Sch Chem Engn, Shaanxi Key Lab Degradable Med Mat, Xian 710069, Shaanxi, Peoples R China
[2] Xian Shiyou Univ, Sch Chem & Chem Engn, Xian 710065, Shaanxi, Peoples R China
关键词
Cr(III) asymmetrical bis-Schiff-base complex; Polyester; Poly(ester-co-ether); CHO and MA; Bulk solvent-free copolymerization; CYCLIC ANHYDRIDES; ALTERNATING COPOLYMERIZATION; BIODEGRADABLE POLYESTERS; MALEIC-ANHYDRIDE; EPOXIDES; OXIDE; POLYMERIZATION; SUBSTITUENTS; CO;
D O I
10.1016/j.inoche.2017.03.031
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Using an asymmetrical Cr(III)-bis-Schiff-base complex [Cr(L)Cl] (1; H2L obtained from condensation of 5-bromo-salicylaldehyde and HL0 ((Z)-4-((2-aminophenylimino)(phenyl)methyl)-3-methyl-1H-pyrazol-5(4H)-one) as the catalyst, bulk solvent-free ring-opening copolymerization of CHO (cyclohexene oxide) and MA (maleic anhydride) in the presence of cocatalyst DMAP (4-(dimethylamino)-pyridine) was effectively realized, in which, on the condition of low 1/DMAP concentration for a controllable polymerization, perfectly alternating polyester while not poly(ester-co-ether) could be obtained. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:86 / 88
页数:3
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