高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (4): 659.

• 论文 • 上一篇    下一篇

顺丁橡胶/酯-醚液晶复合膜的富氧性能研究

张子勇1, 林尚安2   

  1. 1. 华南理工大学高分子材料科学与工程系, 广州 510641;
    2. 中山大学高分子研究所
  • 收稿日期:1995-04-21 出版日期:1996-04-24 发布日期:1996-04-24
  • 通讯作者: 张子勇,男,46岁,博士,讲师.
  • 作者简介:张子勇,男,46岁,博士,讲师.
  • 基金资助:

    国家教育委员会博士学科点基金

Studies on Oxygen Enrichment Properties of Poly(cis-butadiene)/Ester-Ether Liquid Crystal Composite Membranes

ZHANG Zi-Yong1, LIN Shang-An2   

  1. 1. Department of Polymer materials Science and Engineering, South China University of Technology, Guangzhou, 510641;
    2. Institute of Polymer Science, Zhougshan University
  • Received:1995-04-21 Online:1996-04-24 Published:1996-04-24

PDF (PC)

被引次数

5

摘要： 首次制成顺丁橡胶(PB)与具有二重液晶相转变(近晶相,向列相)的液晶化合物双4-(4'-乙氧基苯甲酰氧基)苯甲酸一缩乙二醇酯(DEBEB)的复合膜并研究了其富氧性能。PB/DEBEB复合膜在液晶含量10%时,室温下具有比基质聚合物PB膜大几倍的氧透过系数(po2).透过系数与温度的关系曲线呈现”N“型特征。这些现象与液晶的二重相变行为和膜的形态结构有关。

关键词: 气体分离膜, 富氧膜, 高分子/液晶复合膜

Abstract: Polymer/liquid crystal composite membranes containing poly(cis-butadiene)(PB)and diethylene glycol bis-4-(4'-ethoxybenzoyloxy) benzoate(DEBEB)with two transitionmesophases were prepared for the first time and their oxygen enrichment properties were investigated.The oxygen permeability of the composite membrane with 10% weight content ofDEBEBliquid crystal exhibited several times greater than that of the PBmembrane at roomtemperature.Relationship between permeability coefficients and temperatures was characterized by N-shape curves,that is,the permeability coefficients first increased,followed by decreasing,and then increased again with increasing temperature continuously.We interpretthis result as effect of phase behavior of the liquid crystal and morphology of the compositemembranes on the permeabilities.

Key words: Gas separation membrane, Oxygen enrichment membrane, Polymer/liquid crystal composite membrane

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