- 作者: 盛壽日,劉曉玲,童永芬,諶烈,溫紅麗,宋才生
- 作者服務機構: Institutes of Chemistry, Jiangxi Normal University, Nanchang, 330027, P. R. China
- 中文摘要: Several new methyl substituted poly(aryl ether ketone)s containing sulfone linkage with inherent viscosities of 0.62-0.84 dL/g have been prepared from 4,4¢-bis(2-methylphenoxy)diphenylsulfone and 4,4¢-bis(3-methylphenoxy)diphenylsulfone with terephthaloyl chloride and isophthaloyl chloride by electrophilic Friedel-Crafts acylation in the presence of DMF with anhydrous AlCl3 as a catalyst in 1,2-dichloroethane, respectively. These polymers having weight-average molecular weight in the range of 71,000-49,000 are all amorphous and show high glass transition temperatures ranging from 167 °C to 191 °C, excellent thermal stability at temperatures over 400 °C in air or nitrogen, high char yields of 51-58% in nitrogen and good solubility in CHCl3 and polar solvents such as DMF, DMSO and NMP at room temperature.
- 英文摘要: --
- 中文關鍵字: Poly(aryl ether ketone)s; Sulfone linkage; Methyl-substituted; Synthesis; Characterization.
- 英文關鍵字: --