Copolymerization of carbon dioxide and oxetane catalyzed by aluminum porphyrin complex system

被引：5

作者：

Honda, Masayoshi ^{[1
]}

Nakamura, Ryo ^{[1
]}

Sugimoto, Hiroshi ^{[1
]}

机构：

[1] Tokyo Univ Sci, Dept Ind Chem, Fac Engn, Tokyo, Japan

来源：

JOURNAL OF POLYMER SCIENCE | 2021年 / 59卷 / 24期

关键词：

aluminum porphyrin; CO2; conversion; copolymerization; oxetane; polycarbonate; RING-OPENING POLYMERIZATION; ALIPHATIC POLYCARBONATES; ALTERNATING COPOLYMERIZATION; CYCLIC CARBONATES; POLY(TRIMETHYLENE CARBONATE); CO2; POLYMERS; EPOXIDES; SELECTIVITY; DEPOLYMERIZATION;

D O I：

10.1002/pol.20210536

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Tetraphenylporphinatoaluminum chloride ([TPP]AlCl) catalyst and tetra-n-butylammonium bromide (TBAB) cocatalyst system is effective for the copolymerization of CO2 and oxetane even under low CO2 pressure (similar to 2 MPa). In the presence of toluene as a solvent, poly(trimethylene carbonate) (PTMC) containing >99% of carbonate linkages with M-n = 8600 and M-w/M-n = 1.70 was synthesized. This is the first report of PTMC formation with excellent ratio of carbonate linkages from oxetane and CO2. According to the kinetic analysis, proton nuclear magnetic resonance (H-1 NMR) and matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF/MS) measurements of the products, PTMC was mainly synthesized via (i) the trimethylene carbonate (TMC) formation from CO2 and oxetane and (ii) the successive ring-opening polymerization of TMC.

引用

页码：3122 / 3130

页数：9

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