【摘要】 刚性链嵌段共聚物研究Ⅱ．含双酚Ｓ的聚醚醚酮共聚物合成与性能曹俊奎，苏文成，常春，郑玉斌，吴忠文（吉林大学化学系，长春，１３００２３）关键词聚醚醚酮／双酚Ｓ共聚物，多嵌段共聚物，结晶行为，热性能８０年代以来，聚醚醚酮（ＰＥＥＫ）已成为高性能材料领域十分...更多还原

【Abstract】 series of multiblock copolymers composed of polyetheretherketone (PEEK) and 4, 4’-dihydroxydiphenylsulfone (DHDPS) were synthesized by polycondensation. The property of copolymers were characterics by DSC, IR, WAXD and TGA. The results indicate that the Tg of copolymers increases with increasing DHDPS content’ When the DHDPS content of the copolymers is less than 22% (the average degree of polymerization of PEEK oligomers is more than 6), the copolymers are Crystalline polymers. The highest Tg of the Crystalline copolymers is 160 ℃, the lowest Tm. is 304℃.更多还原