化学
聚碳酸酯
环境友好型
碳酸丙烯酯
高分子化学
聚合物
有机化学
聚合
电极
生态学
电化学
生物
物理化学
作者
Naganath G. Patil,Senthil Bhoopathi,Vamshi K. Chidara,Nikos Hadjichristidis,Yves Gnanou,Xiaoshuang Feng
出处
期刊:Chemsuschem
[Wiley]
日期:2020-07-21
卷期号:13 (18): 5080-5087
被引量:34
标识
DOI:10.1002/cssc.202001395
摘要
Abstract In this investigation, a metal‐free process was developed that enables the synthesis of poly(propylene carbonate) (PPC) diols/polyols by copolymerization of CO 2 with propylene epoxide (PO) under environmentally friendly and cost‐effective conditions. This process implies the recycling of triethylborane and of ammonium salts that both enter in the composition of the initiators used to copolymerize CO 2 and PO. In complement to the above approach, a polymeric support, poly(diallyl dimethylammonium chloride), was synthesized and modified to carry ammonium carboxylate salts along its chain. The prepared polymeric initiator was utilized to copolymerize CO 2 with PO under heterogeneous conditions. Not only were the polymerization results similar to the samples obtained under homogeneous conditions, but the polymer substrate could easily be recovered by simple filtration. The integrity of the polycarbonate diols/polyols and the recycling process were followed by 1 H and 11 B NMR spectroscopy, gel permeation chromatography, and matrix assisted laser desorption ionization time of flight (MALDI‐TOF) MS.
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