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15. Photosensitive poly(ether sulfone)s for thiol/ene UV curable coatings: synthesis, characterization and crosslinking
作者:Zhi Zeng,Shaowei Guan, Haibo Zhang, Linlin Zhang, Baijun Liu, Zhenhua Jiang
關鍵字:poly(ether sulfone),coating
論文來源:期刊
具體來源:e-Polymers, 2010, 10(1): 1013-1021.
發表時間:2010年
Novel photocrosslinkable poly(ether sulfone)s copolymers with allyl pendants (AS-PES) have been synthesized from 3,3''-diallyl-4,4''-dihydroxydiphenyl sulfone (DA-DHDPS), 4,4''-dihydroxydiphenyl sulfone (DHDPS) and 4,4''-dichlorophenylsulfone (DCDPS). The resulting polymers could be photocrosslinked in the presence of thiol at room temperature. The crosslinking process was monitored by "Real Time Fourier Transform Infrared Spectroscopy" (RTIR). It proves that a small amount (1.0 wt%) of the thiol crosslinker addition is sufficient to form a chemical network under UV irradiation. After UV curing, AS-PES-20 coating showed high T(g), good thermal stability and excellent resistance to the acid, salt, and alkali. Accordingly, this method could successfully provide a new approach to make rapidly photocrosslinking poly(ether sulfone) coatings without losing their good thermal properties.
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