Highly sulfonated poly(aryl ether ketone) block coplymers having a cross-linking structure

Autor:	Satoko Fujiyama, Jun-ichi Ishikawa, Takehiko Omi, Shoji Tamai, Koji Inoue
Rok vydání:	2007
Předmět:	chemistry.chemical_classification Ketone Condensation polymer Bisphenol Aryl Filtration and Separation Ether Biochemistry Oligomer chemistry.chemical_compound chemistry Polymer chemistry Benzophenone Copolymer Organic chemistry General Materials Science Physical and Theoretical Chemistry
Zdroj:	Journal of Membrane Science. 298:48-55
ISSN:	0376-7388
DOI:	10.1016/j.memsci.2007.03.057
Popis:	Multi-block copolymers of sulfonated poly(aryl ether ketone) (PAEK) were synthesized by polycondensation of aromatic dihalide, bisphenol and hydroxy-terminated sulfonated oligomer, which was synthesized from sulfonated aromatic dihalide and bisphenol. These sulfonated PAEKs had benzophenone units and methyl moieties in their structure, and they could be cross-linked by UV irradiation. The effects of the multi-block structure were investigated by comparison of the properties of the multi-block copolymer and a random copolymer. The multi-block structure could reduce the methanol permeability efficiency without decreasing the proton conductivity, and it was concluded that the combination of a multi-block structure and a cross-linking system is a useful method for sulfonated PAEKs for the proton-exchange membrane in a DMFC.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::21fcbcc93badd3ae3109cc9620ad64f5 https://doi.org/10.1016/j.memsci.2007.03.057 Zobrazit plný text záznamu Full Text from ScienceDirect