Regioselective and Alternating Copolymerization of Carbonyl Sulfide with Racemic Propylene Oxide

被引：83

作者：

Luo, Ming ^{[1
]}

Zhang, Xing-Hong ^{[1
]}

Du, Bin-Yang ^{[1
]}

Wang, Qi ^{[1
]}

Fan, Zhi-Qiang ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Peoples R China

来源：

MACROMOLECULES | 2013年 / 46卷 / 15期

基金：

美国国家科学基金会;

关键词：

POLYMERIZATION; DIOXIDE; DISULFIDE; COMPLEXES; CATALYSTS; CHEMISTRY; EPOXIDES; EXCHANGE; POLYMERS; ATOM;

D O I：

10.1021/ma401114m

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report the first example of a regioregular and fully alternating poly (propylene monothiocarbonate) (PPMTC) from the well-controlled copolymerization of two asymmetric monomers, carbonyl sulfide and racemic propylene oxide, using (Salen)CrCl in conjunction with bis(triphenylphosphoranylidene)ammonium chloride. The maximum turnover of frequency of this catalyst system was 332 h(-1) at 25 degrees C. The contents of monothiocarbonate and tail-to-head linkages of PPMTC were up to 100% (based on H-1 NMR spectra) and 99.0% (based on C-13 NMR spectra), respectively. PPMTC samples have number-average molecular weight (M-n) up to 25.3 kg/mol with polydispersity index of 1.41. The very low decomposition temperature of 137 degrees C and high refractive index of 1.63 of PPMTC make it a potential scarifying optical adhesive.

引用

页码：5899 / 5904

页数：6

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