GAS PERMEABILITIES OF POLY(TRIMETHYLSILYLPROPYNE) MEMBRANES SURFACE MODIFIED WITH CF4 PLASMA

被引：25

作者：

LIN, XA

JUN, XA

YU, YL

JIE, C

ZHENG, GD

XU, JP

机构：

[1] Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1993年 / 48卷 / 02期

关键词：

D O I：

10.1002/app.1993.070480207

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Surface fluorination of poly (trimethylsilylpropyne) (PTMSP) membranes by CF4 plasma was studied. The surface fluorination of the membranes was carried out in an atmosphere of CF4 in a capacitively coupled discharge apparatus with external electrodes. Dramatic increase in selectivity (P(O2)/P(N2)) was observed. The effect of fluorination conditions such as duration of treatment and discharge power on the permeabilities of the membranes was studied. X-ray photoelectron spectrometric data of modified PTMSP membranes showed a drastic alternation in the surface layer. The P(O2) and P(O2)/P(N2) of the membranes were observed to be dependent on the F/C atomic ratio. At F/C > 1, the P(O2/P(N2) value of the membranes could be more than four.

引用

页码：231 / 236

页数：6

共 14 条

[1] IMPROVEMENT OF OXYGEN PERMSELECTIVITY THROUGH POLYDIMETHYLSILOXANE AND POLY (1-TRIMETHYLSILYLPROPYNE) FILMS BY THE ADDITION OF A SMALL AMOUNT OF POLY (TRIFLUOROMETHYL SUBSTITUTED ARYLACETYLENE) [J].