Poly(1 -(trimethylsilyl)1 -propyne)-A Promising Materials for Gas Separation

Kada Zhang

doi:10.14028/j.cnki.1003-3726.1993.03.007

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Poly(1 -(trimethylsilyl)1 -propyne)-A Promising Materials for Gas Separation

更新时间：2022-09-18

- Poly(1 -(trimethylsilyl)1 -propyne)-A Promising Materials for Gas Separation
- Polymer Bulletin Vol. 6, Issue 3, Pages: 165-169,186(1993)
- 作者机构：
  
  中国科学院长春应用化学研究所，长春，130022
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.1993.03.007
  CLC：
- Published：1993-09，
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Kada Zhang. Poly(1 -(trimethylsilyl)1 -propyne)-A Promising Materials for Gas Separation. [J]. Polymer Bulletin 6(3):165-169,186(1993)
DOI：

Kada Zhang. Poly(1 -(trimethylsilyl)1 -propyne)-A Promising Materials for Gas Separation. [J]. Polymer Bulletin 6(3):165-169,186(1993) DOI： 10.14028/j.cnki.1003-3726.1993.03.007.

摘要

聚[1-（三甲硅基）1-丙炔](PTMSP)膜的气体透过速率高于目前已知的，不管在室温是玻璃态还是橡胶态的任何聚合物。PTMSP在室温是玻璃态。PTMSP的高透气性主要来源于极高的对气体溶解度及高扩散系数，而这是因为在这种玻璃态聚合物中，有大量处于非松弛区域的自由体积。PTMSP的最大问题是它的高透气性随着时间的过去和热历史而衰减。近来，为解决这一问题进行了大量的努力，如加入低挥发材料，氟化、溴化，与其它单体共聚，与其它聚合物共混等。

Abstract

Permeabilities of poly [1-(trimethylsilyl) 1- propyne] (PTMSP) to gases is higher than those of any other nonporous synthetic polymers whether they are glassy or rubbery at ambient temperature. PTMSP is in the glassy polymer state. The high gas permeability of PMSP results primary from substantial gas solubility and diffusivity

which appears to be due to

in turn

to a large excess free volume in the unrelaxed (Iangmuir) domains of this glassy polymer. The biggest problem with PMSP is the deterioration of its high permeability with the passage of time or thermal histeresis. Now

a lot of efforts is being devoted to solving this problem by the addition of less volatile materials

fluorination

bromination

copolymerization with other monomer

or blend with other polymetrs.

关键词

聚[1-（三甲硅基）1-丙炔]膜气体分离富氧

Keywords

Poly[1-(trimethylsilyl) 1-propyne]MembraneGas separationOxygen enrichment

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