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Design and synthesis of poly(arylene ether sulfone)s with high glass transition temperature by introducing biphenylene groups
Author(s) -
Liu Xin,
Gao Yanwei,
Zhu Xuanbo,
Shang Yingshuang,
Cui Zengduo,
Yan Qixing,
Zhang Haibo
Publication year - 2020
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.6071
Subject(s) - arylene , biphenylene , glass transition , sulfone , materials science , ether , ultimate tensile strength , thermal stability , polymer , polymer chemistry , composite material , polymerization , phenylene , chemistry , organic chemistry , aryl , alkyl
Two novel poly(arylene ether sulfone)s with high biphenylene content (BDS‐PES and BDS‐PDBES) are prepared by nucleophilic substitution polymerization of synthesized 4,4′‐bis(4‐hydroxyphenyl)diphenyl sulfone (BDS) with 4,4′‐sulfonylbis(fluorobenzene) and 4,4‐bis[(4‐chlorophenyl)sulfonyl], respectively. The prepared polymers show high glass transition temperature and excellent high‐temperature mechanical properties. The glass transition temperature of BDS‐PDBES with higher biphenylene content is as high as 300 °C, and BDS‐PDBES can still maintain its 30% storage modulus at 295 °C. In addition, the two novel polymers also show excellent thermal stability ( T d5 = 526 °C), high elongation at break ( ε ≈ 20%), good tensile strength (73 MPa) and modulus (1.73 GPa) and good thermal conductivity ( λ 300°C = 0.28 W ·m −1 ·K −1 ).