Properties of Random PSF/PES Copolymers as High-Performance Polymers

Abstract:

A series of random polysulfone/polyethersulfone (PSF/PES) copolymers were synthesized by the polycondensation of 4, 4'-isopropylidendiphenol, 4, 4΄-dihyolroxy diphenyl sulfone and 4, 4'-dichlorodiphenyl sulfone in the presence of K2CO3. We obtained a series of copolymers by changing the molar ratio of 4, 4΄-dihyolroxy diphenyl sulfone and 4, 4'-isopropylidendiphenol (it was marked as the ratio of S:A). The copolymers have the similar solubility with polyethersulfone. They also have high glass transition temperatures (Tg: 199°C~229°C) and 5% weight loss temperatures (4, 4'-isopropylidendiphenol: 4, 4΄-dihyolroxy diphenyl sulfone=1:1, Td5=497°C). At the same time the elongation at break is much higher than that of PES, while the tensile strength is a little lower than that of PES.

• Periodical: Advanced Materials Research (Volumes 217-218)
• Pages: 1606-1610
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.217-218.1606
• Online since: March 2011
• Authors: Dong Jiang, Xiao Ran Zhang, Yan Mei Ma, Cheng You Ma
• Keywords: Polyethersulfone, Polysuifone, Synthetize, Thermogravimetic Analysis

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