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Synthesis and thermoanalysis of emulsion terpolymers of N ‐phenylmaleimide, styrene, and acrylonitrile
Author(s) -
Yang Liting,
Zhang Liucheng,
Liu Guodong,
Gao Jungang,
Yang Sen,
Yang Mingshan,
Jin Riguang
Publication year - 2000
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 - 10.1002/1097-4628(20010207)79:6<1067::aid-app100>3.0.co;2-e
Subject(s) - vicat softening point , thermogravimetric analysis , emulsion polymerization , softening point , materials science , differential scanning calorimetry , acrylonitrile , polymer chemistry , glass transition , thermal decomposition , gel permeation chromatography , acrylonitrile butadiene styrene , styrene , copolymer , ultimate tensile strength , chemical engineering , composite material , polymer , chemistry , organic chemistry , physics , engineering , thermodynamics
Abstract Terpolymers of N ‐phenylmaleimide (PMI), styrene, and acrylonitrile (AN) were synthesized by emulsion polymerization. The thermal properties of terpolymers at different PMI and AN feed contents were investigated by differential scanning calorimetry, torsional braid analysis, thermogravimetric analysis, and a Vicat softening point test. The results showed the glass‐transition temperature and decomposition temperature of the terpolymers increased with increasing PMI feed content. Furthermore, the Vicat softening point of the terpolymers rose with PMI feed content. The weight‐ and number‐average molecular weights (M̄ w and M̄ n ) of the terpolymers were also determined by gel permeation chromatography. The results showed that the M̄ w and M̄ n of the terpolymers decreased with increasing PMI feed content and increased with increasing AN feed content. The mechanical properties (tensile strength and impact strength) of the terpolymers decreased with increasing PMI feed content and increased with increasing AN feed content. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 1067–1073, 2001