XPS STUDIES ON SURFACE MODIFIED POLY [1-(TRIMETHYLSILYL)-1-PROPYNE] MEMBRANES Ⅱ SURFACE MODIFICATION BY BROMINE VAPOR*

XU Guanfan; SUN Xiaoguang; QIU Xuepeng; ZHANG Jinlan; ZHENG Guodong

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XPS STUDIES ON SURFACE MODIFIED POLY [1-(TRIMETHYLSILYL)-1-PROPYNE] MEMBRANES Ⅱ SURFACE MODIFICATION BY BROMINE VAPOR*

Papers | Updated：2021-06-21

- XPS STUDIES ON SURFACE MODIFIED POLY [1-(TRIMETHYLSILYL)-1-PROPYNE] MEMBRANES Ⅱ SURFACE MODIFICATION BY BROMINE VAPOR*
- Vol. 12, Issue 2, Pages: 180-184(1994)
- Affiliations：
  
  1.   Changchun Institute of Applied Chemistry
  2.   Academia Sinica
  3.   Changchun 130022
- Author bio：
- Funds：
- DOI：
  CLC： TQ316.6
- Published：20 June 1994
- Accepted：
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[1]许观藩,孙晓光,邱雪鹏,张金兰,郑国栋.XPS STUDIES ON SURFACE MODIFIED POLY [1-(TRIMETHYLSILYL)-1-PROPYNE] MEMBRANES Ⅱ SURFACE MODIFICATION BY BROMINE VAPOR[J].Chinese Journal of Polymer Science,1994,{4}(02):180-184.

XU Guanfan, SUN Xiaoguang, QIU Xuepeng, et al. XPS STUDIES ON SURFACE MODIFIED POLY [1-(TRIMETHYLSILYL)-1-PROPYNE] MEMBRANES Ⅱ SURFACE MODIFICATION BY BROMINE VAPOR*[J]. 1994, 12(2): 180-184.
[1]许观藩,孙晓光,邱雪鹏,张金兰,郑国栋.XPS STUDIES ON SURFACE MODIFIED POLY [1-(TRIMETHYLSILYL)-1-PROPYNE] MEMBRANES Ⅱ SURFACE MODIFICATION BY BROMINE VAPOR[J].Chinese Journal of Polymer Science,1994,{4}(02):180-184. DOI：

XU Guanfan, SUN Xiaoguang, QIU Xuepeng, et al. XPS STUDIES ON SURFACE MODIFIED POLY [1-(TRIMETHYLSILYL)-1-PROPYNE] MEMBRANES Ⅱ SURFACE MODIFICATION BY BROMINE VAPOR*[J]. 1994, 12(2): 180-184. DOI：

摘要

正

Surface modification of poly [1-（trimethylsilyl）-1-propyne] （PTMSP） membranes bybromine vapor has been studied. It is shown that Br/C atomic ratio at the surfaces increased withthe time of bromination until about 60 min

then it reached a plateau. The results of XPS and IRstudies indicated that the addition of bromine to double bonds and the replacement of H on CH

bybromine had taken place so that a new peak at 286.0 eV （C--Br）in C

spectra and some newbands

e. g. at 1220 and 580cm

-1

in IR spectra were formed. The fact

t Po

permeability ofoxygen

decreased and α

separation factor of oxygen relative to nitrogen

increased withbromination time

shows that surface modification of PTMSP by bromine may be an efficient approach to prepare PTMSP membranes used for practical gas separations.

Abstract

then it reached a plateau. The results of XPS and IRstudies indicated that the addition of bromine to double bonds and the replacement of H on CH

bybromine had taken place so that a new peak at 286.0 eV （C--Br）in C

spectra and some newbands

e. g. at 1220 and 580cm

-1

in IR spectra were formed. The fact

t Po

permeability ofoxygen

decreased and α

separation factor of oxygen relative to nitrogen

increased withbromination time

shows that surface modification of PTMSP by bromine may be an efficient approach to prepare PTMSP membranes used for practical gas separations.

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