One-pot synthesis of high-molecular-weight aliphatic polycarbonates via melt transesterification of diphenyl carbonate and diols using Zn(OAc)2 as a catalyst

被引：45
|
作者：
Wang, Ziqing [1 ,2 ,3 ]
Yang, Xiangui [1 ,2 ]
Liu, Shaoying [1 ,2 ]
Hu, Jing [1 ]
Zhang, Hua [1 ]
Wang, Gongying [1 ,2 ]
机构：
[1] Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Sichuan, Peoples R China
[2] Changzhou Inst Chem, Changzhou 213164, Jiangsu, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
RSC ADVANCES | 2015年 / 5卷 / 106期
关键词：
RING-OPENING POLYMERIZATION; ZINC ACETATE CATALYST; 7-MEMBERED CYCLIC CARBONATE; DIMETHYL CARBONATE; THERMAL-DEGRADATION; POLY(HEXAMETHYLENE CARBONATE); 1,2-PROPYLENE GLYCOL; PROPYLENE CARBONATE; DIOXIDE; COMPLEXES;
D O I：
10.1039/c5ra18275a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A simple and efficient route for one-pot synthesis of high-molecular-weight aliphatic polycarbonates (APCs) by direct melt transesterification of diphenyl carbonate (DPC) with aliphatic diols at equimolar amounts was developed. Zn(OAc)(2) was found to be the best catalyst for this reaction among the screened transition metal acetates. The effects of reaction conditions on M-w and yield of the poly(1,4-butylene carbonate) (PBC) were investigated, where the highest M-w of 156 200 g mol(-1) with a yield of 83% was obtained under suitable reaction conditions. In addition, based on the results of thermogravimetric and differential thermal analysis (TG-DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR), a plausible reaction mechanism over Zn(OAc)(2) was proposed for APC synthesis.
引用
收藏
页码：87311 / 87319
页数：9
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