The copolymerisation of methyl and ethyl methacrylate in supercritical carbon dioxide

被引：0
|
作者：
Giles, MR
Hay, JN
Howdle, SM
机构：
[1] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England
[2] Univ Surrey, Dept Chem, Sch Phys & Chem, Surrey GU2 7XH, England
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2000年 / 21卷 / 15期
关键词：
D O I：
10.1002/1521-3927(20001001)21:15<1019::AID-MARC1019>3.3.CO;2-D
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
This paper reports the free radical dispersion copolymerisation of methyl and ethyl methacrylate in supercritical carbon dioxide. The polymerisation uses a poly(dimethyl siloxane) monomethacrylate macromonomer as the stabiliser. A range of different reaction times was investigated in order to probe the amount of each monomer incorporated in the copolymer. Analysis by H-1 NMR spectroscopy reveals that the monomers behave as in conventional solvents to form a random copolymer. The effect of varying the initiator concentration (initiator 2,2'-azobisisobutyronitrile, AIBN) on the composition and molecular weights of the resultant copolymers has also has been studied.
引用
收藏
页码：1019 / 1023
页数：5
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