高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (2): 303.

• 论文 • 上一篇    下一篇

刚性链嵌段共聚物的研究(Ⅳ)──聚醚醚酮/苯酞圈型聚芳醚砜有规嵌段共聚物的合成与部分性能

曹俊奎, 苏文成, 栾天罡, 陈艳, 吴忠文   

  1. 吉林大学化学系, 长春, 130023
  • 收稿日期:1993-02-11 修回日期:1993-08-25 出版日期:1994-02-24 发布日期:1994-02-24
  • 通讯作者: 曹俊奎,男,53岁,副教授
  • 作者简介:曹俊奎,男,53岁,副教授
  • 基金资助:

    国家自然科学基金

Studies on the Rigid-Rigid Block Copolymers (Ⅳ)──Preparation and Properties of Polyetheretherketone/Phenol phthalein Polyarylethersulfone Block Copolymers

CAO Jun-Kui, SU Wen-Cheng, LUAN Tian-Gang, CHEN Yan, WU Zhong-Wen   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1993-02-11 Revised:1993-08-25 Online:1994-02-24 Published:1994-02-24

摘要: 以聚醚醚酮(PEEK)和苯酞圈型聚芳醚砜(PDC)齐聚物为原料,通过溶液缩聚法制备了PEEK/PDC有规嵌段共聚物系列样品。经DSC、WAXD、TGA、DMA等方法研究表明:共聚物没有微相分离现象;其结晶属于简单正交晶系,PDC含量对共聚物结晶行为产生很大影响;热稳定性随PDC含量增加而明显降低;共聚物具有优异的力学性能,拉伸强度和储能模量高于PEEK.

关键词: 聚醚醚酮/苯酞圈型聚芳醚砜嵌段共聚物, 结晶行为, 热性能, 力学性能

Abstract: Aseries of rigid-rigid block copolymers of PEEK/phenolphthalein polyarylethersulfone(PDC) were prepared by the condensation of hydroxyl-terminated PDColigomers and fluorine-terminated PEEKoligomers, and some properties of the copolymers were invest igated by DSC,TGA,WAXDand DMA.The results show that the copolymers exhibited no phase separation.The crystalline structure of the copolymer belongs to orthorhombic unit cell structure, PDCcontent in the copolymers has a great influence on the crystallization behaviour.The thermal stability of copolymers decreases obviously with PDCcontent increasing, The copolymers have very good mechanical properties, the modulus and the tensile strength of copolymer are higher than those of pure PEEK.

Key words: PEEK/PDC block copolymer, Crystallization behaviour, Thermal property, Mechanical property

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