应用化学 ›› 1991, Vol. 0 ›› Issue (5): 37-41.

• 研究论文 • 上一篇    下一篇

磺化聚苯醚离聚体的溶液性质

黄玉惠, 刘彦, 吕志兵, 赵树录, 丛广民   

  1. 中国科学院广州化学研究所, 广州 510650
  • 收稿日期:1990-03-01 修回日期:1990-12-06 出版日期:1991-10-10 发布日期:1991-10-10
  • 基金资助:
    国家自然科学基金;高分子物理开放实验室资助项目

BEHAVIOR OF SULFONATED POLY (2,6-DIMETHYL-1,4-PHENYLENE OXIDE)AND THEIR SALTS IN SOLUTION

Huang Yuhui, Liu Yan, Lu Zhibing, Zhao Shulu, Cong Guangmin   

  1. Guangzhou Institute of Chemistry, Academia Sinica, Cuangzhou 510650
  • Received:1990-03-01 Revised:1990-12-06 Published:1991-10-10 Online:1991-10-10

摘要: 研究了磺化度为20.9mol%的磺化聚苯醚(S-PPO)的钠盐和锂盐在四氢呋喃/甲醇混合溶剂中的离聚体行为。S-PPO离聚体在溶液中的链聚集状态与聚合物浓度、阳离子半径密切相关。当Na-SPPO的浓度高于3g/dL时,在30~40℃范围内其聚集度DA与浓度C的关系为:DA=keεc常数K和β分别表示为与发现链聚集的起始浓度和链聚集速率相关的常数。

关键词: 磺化聚苯醚, 离聚物, 溶液, 聚集态

Abstract: A series of sulfonated poly (2, 6-dimethyl-1, 4-phenylene oxide) (S-PPO) were prepared.The solution behavior of S-PPO with 20.9 mol% sulfonyl group and its salts in mixedTHF/MeOH was studied.It is shown that the state of ehain aggregation of S-PPO ionomersin solvent was e'osely related to the polymer coneentration and radius of the cation of salts.The relationship between degree of aggregation and ionomer eoneentration was DA = KeBC when the eoneentration was higher than 3g/dL.Here K and β were the eonstants relatedto the starting aggregation eoneentration and the rate of ehain aggregation, respeetively.

Key words: sulfonated poly(2,6-dimethyl-1,4-phenylene oxide),ionomer solution, aggregation state