The molecular structure control of butyl methacrylate/acrylamide (co)polymers

被引：5

作者：

Ding, Hongyao ^{[1
]}

Tang, Hongyan ^{[1
,2
]}

Wang, Feng ^{[1
]}

Zhang, Huapeng ^{[1
]}

Guo, Yuhai ^{[1
,2
]}

机构：

[1] Zhejiang Sci Tech Univ, Natl Local Joint Engn Lab Text Fiber Mat & Proc T, Hangzhou 310018, Zhejiang, Peoples R China

[2] Zhejiang Sci Tech Univ, Key Lab Adv Text Mat & Mfg Technol, Minist Educ, Hangzhou 310018, Zhejiang, Peoples R China

来源：

MATERIALS & DESIGN | 2015年 / 88卷

关键词：

Molecular structure; (Co)polymer; Synthesis; FOAM; POLYMERIZATION; PERFORMANCE; COPOLYMERS; NMR;

D O I：

10.1016/j.matdes.2015.09.037

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Butyl methacrylate (BMA)/acrylamide (AM) (co)polymers were synthesized through free radical bulk copolymerization by two steps. Effect of synthesis process on the molecular structure and properties of BMA/AM (co)polymers was deeply investigated. C-13 NMR results indicated that AM only participated in copolymerization with BMA, which would be promoted under a higher prepolymerization temperature. A higher conversion ratio of AM could be obtained by batch feeding. FTIR results showed that a higher prepolymerization temperature or batch feeding could increase the content of AM unit in the BMA/AM (co)polymers. DMA results indicated that a higher prepolymerization temperature or batch feeding would induce a higher Tg value of the BMA/AM (co)polymer. DSC and TGA results showed a weight loss at 150-250 degrees C because of the imidization reactions, which would be increased by a higher prepolymerization temperature or batch feeding. Mechanical properties of PMI foam would increase under a higher prepolymerization temperature or batch feeding. In a word, the molecular structure and properties of the BMA/AM (co)polymers could be controlled. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：820 / 826

页数：7

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