期刊
JOURNAL OF POLYMER SCIENCE
卷 58, 期 6, 页码 824-830出版社
WILEY
DOI: 10.1002/pol.20190279
关键词
hyperbranched polymer; hyperbranched; organocatalyst; polythioether; polysulfides; step-growth polymerization; thiol-Michael
In this study, two types of hyperbranched (HB) polythioether could readily be achieved in a short time at ambient temperature through a thiol-Michael addition reaction. Dimethyl acetylenedicarboxylate (DMADC) or methyl propiolate (A(2)) and trimethylolpropane tris(3-mercaptopropionate) (B-3) monomers were reacted using an organobase 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as a catalyst in chloroform at room temperature to provide subsequent HB polythioethers. The effect of TBD concentration on the polymerization was studied for the DMDAC case monitoring the molecular weight evolution against time. HB polythioethers were characterized using spectroscopic (nuclear magnetic resonance) and chromatographic (gel permeation chromatography with refractive index and light-scattering detectors) techniques. (c) 2020 Wiley Periodicals, Inc. J. Polym. Sci. 2020, 58, 824-830
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据