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Relations of weight‐average molecular weights and the thermal properties of N ‐cyclohexyl maleimide–methyl methacrylate
Author(s) -
Shaosheng Dong,
Qingmin Wang,
Yuezhen Wei,
Zhiqian Zhang
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19981205)70:10<2001::aid-app16>3.0.co;2-m
Subject(s) - maleimide , azobisisobutyronitrile , methyl methacrylate , copolymer , polymer chemistry , glass transition , thermal decomposition , molar mass distribution , materials science , chemistry , polymer , organic chemistry , composite material
N ‐cyclohexyl maleimide (CHMI) was used to copolymerize with methyl methacrylate (MMA) by a suspension copolymerization method to produce heat‐resistant poly(MMA) (PMMA) in this article. The copolymers were synthesized by changing the weight fractions of azobisisobutyronitrile (AIBN) and dodecanethiol (DDM), while the weight ratio of CHMI to MMA was defined. The effects of the weight fractions of AIBN and DDM on weight‐average molecular weight ( M w ) were studied. Meanwhile, relations between M w and the glass transition temperature ( T g ) and decomposition temperature ( T d ) and M w and the melt flow index (MFI) were described. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 2001–2005, 1998