Radical polymerization of methyl methacrylate with 2,2,3-triphenylpropanoic acid as an initiator

被引：0
作者：
Xuee Li
Jianmin Lu
Wantai Yang
Bingyong Han
机构：
[1] Beijing University of Chemical Technology,State Key Laboratory of Chemical Resource Engineering
来源：
Colloid and Polymer Science | 2014年 / 292卷
关键词：
2,2,3-Triphenylpropanoic acid; Methyl methacrylate; Radical polymerization; Initiator; Mechanism;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An unsymmetrical compound, 2,2,3-triphenylpropanoic acid (TPPA), was successfully prepared from phenyllithium, 1,1-diphenylethylene (DPE), gas carbon dioxide (CO2), and aqueous standard solution of hydrochloric acid with LiCl deprivation. Characterization of the compound was performed by 1H and 13C nuclear magnetic resonance (NMR) spectroscopy. The polymerization of methyl methacrylate (MMA) was performed in the presence of TPPA at 95 °C. The free radicals obtained were characterized by ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF MS). Gel permeation chromatography (GPC) traces of the average molecular weight of poly(MMA) (PMMA) showed a series of translations with increasing time. The average molecular weight of PMMA indicated narrow polydispersity, and an approximately linear relationship was found between ln ([M]0/[M]) and polymerization time.
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页码：1469 / 1474
页数：5
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