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A novel feed‐stock recyclable hyperbranched polymaleimide: Synthesis and characterization
Author(s) -
Pan Wanjiang,
Liu Hewen,
Wu Songtao,
Wilén CarlEric
Publication year - 2006
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/app.23587
Subject(s) - maleimide , depolymerization , polymer chemistry , dispersity , monomer , copolymer , succinimide , gel permeation chromatography , yield (engineering) , chemistry , condensation polymer , size exclusion chromatography , decomposition , molar mass distribution , materials science , polymer , organic chemistry , metallurgy , enzyme
Hyperbranched polymaleimide can be readily obtained by copolymerization of allyl maleimide and propyl maleimide. A hyperbranched polymaleimide was obtained in a yield of 56 wt % in 3 h at 50°C, whose weight average molecular mass and polydispersity index were measured by size‐exclusion chromatography to be 59,000 and 4.1, respectively. TGA showed a one‐step mass loss process in the decomposition of the hyperbranched polymaleimide. The dominant pyrolysis mechanism was revealed by gas chromatography/mass spectrometry to be depolymerization. The major pyrolysates of the hyperbranched polymaleimide were allyl maleimide, propyl succinimide, and other volatile monomeric units. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 1848–1852, 2006
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