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Study on the imidization kinetics of polyether‐ester polyamic acid in solid phase by microwave radiation
Author(s) -
Chen Jiangning,
Chen Qingmin,
Yu Xuehai
Publication year - 1996
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(19961219)62:12<2135::aid-app15>3.0.co;2-4
Subject(s) - microwave , radiation , materials science , polymerization , kinetics , polymer chemistry , condensation , phase (matter) , thermal , condensation reaction , chemical engineering , fourier transform infrared spectroscopy , polymer , chemistry , organic chemistry , composite material , catalysis , thermodynamics , optics , physics , quantum mechanics , engineering
The polyether‐ester polyamic acid imidization process in a solid state was studied by microwave radiation. The imidization content at different radiation times was calculated quantitatively by FTIR and was confirmed by the results of dynamic mechanical analysis (DMA). The microwave radiation imidization may drop the reaction temperature and cut the raction time down in comparison with the thermal imidization. It may be expected theoretically that the microwave radiation may generally be suitable for the condensation polymerization reaction and facilitates the reaction, especially at its later stage. © 1996 John Wiley & Sons, Inc.