Synthesis, Characterization of Zinc Complexes with Neutral α-Diimine Ligands and Application in Ring-opening Polymerization of ε-Caprolactone

被引：4

作者：

Wang, Xiaodan ^{[1
]}

Liu, Xuehong ^{[1
]}

Huang, Ju ^{[1
]}

机构：

[1] Guangdong Pharmaceut Univ, Sch Pharmaceut Chem & Chem Engn, 13 Changmingshui Rd, Wuguishan Town 528458, Zhongshan, Peoples R China

来源：

CHIMIA | 2017年 / 71卷 / 11期

关键词：

epsilon-Caprolactone; Catalyst; Neutral ligands; Ring-opening polymerization; Zinc complex; LACTIDE POLYMERIZATION; GUANIDINE COMPLEXES; CYTOTOXICITY; DERIVATIVES; ZN(II); CU(II);

D O I：

10.2533/chimia.2017.773

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of neutral alpha-diimine ligands with diacetyl and acenaphthenequinone skeletons were prepared by the reaction between diacetyl and the corresponding aromatic amine. These ligands reacted with ZnCl2 to generate symmetric alpha-diimine zinc complexes C1-C10. Experimental results indicated that the alpha-diimine zinc complexes with a diacetyl skeleton (C1-C4) were active in ring-opening polymerization (ROP) of epsilon-caprolactone (epsilon-CL). The complexes with an acenaphthenequinone skeleton showed a small steric effect (C5, C8 and C9) but the complex substituted with an electron-withdrawing group (C10) showed high activity in the monomer conversion rate during ROP of epsilon-CL. The ROP catalysts of epsilon-CL demonstrated the mechanism of monomer activation in the presence of benzyl alcohol.

引用

页码：773 / 776

页数：4

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