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Factors influencing thermal, mechanical, optical, and adhesive properties of segmented poly(imide siloxane) copolymers films
Author(s) -
Zhao Daoxiang,
Chen Weijun,
Qu Chunyan,
Liu Changwei,
Cui Baojun,
Li Gang,
Song Junjun,
Li Liaoliao,
Zheng Shuai,
Chang Jiaying,
Tang Yao,
Shang Liming,
Zhang Haitao
Publication year - 2019
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.48148
Subject(s) - materials science , siloxane , copolymer , adhesive , polymer , polyimide , imide , composite material , polymer chemistry , polycarbonate , layer (electronics)
Poly(imide siloxane), block and blend copolymer, were synthesized using different methods to explore the influence of siloxane chains. The flexible siloxane chains enrichment on surface of copolymer, enhance hydrophobic and adhesive with copper foil. It also improves light transmittance of polyimide film in the visible light region. The effect of different preparation methods on the aggregation in polymers and on polymer properties, especially adhesion and water absorptivity, are also discussed. The imidization temperature and synthesis method (blend and block) during the reaction has a significant effect on the properties of the product, especially thermal properties ( T g values are 207 °C for block and 180 °C for blend) and mechanical properties (elongation of 130% for block and 50% for blend). The bonding strength of polymer films used as hot melt adhesive was also tested. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 48148.