Enhanced performances of polypropylene membranes by molecular layer deposition of polyimide

Sen Xiong; Ting Sheng; Liang Kong; Zhaoxiang Zhong; Jun Huang; Yong Wang

doi:10.1016/j.cjche.2016.02.002

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Enhanced performances of polypropylene membranes by molecular layer deposition of polyimide

Separation Science and Engineering | Updated：2026-01-06

- Enhanced performances of polypropylene membranes by molecular layer deposition of polyimide
- Enhanced performances of polypropylene membranes by molecular layer deposition of polyimide
- 中国化学工程学报（英文版） 2016年24卷第7期页码：843-849
- Affiliations：
  
  State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University,Nanjing,China,210009
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.02.002
  中图分类号：
- 纸质出版：2016
- Accepted：
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Sen Xiong, Ting Sheng, Liang Kong, 等. Enhanced performances of polypropylene membranes by molecular layer deposition of polyimide[J]. 中国化学工程学报（英文版）, 2016,24(7):843-849.

Sen Xiong, Ting Sheng, Liang Kong, Zhaoxiang Zhong, Jun Huang, Yong Wang. Enhanced performances of polypropylene membranes by molecular layer deposition of polyimide[J]. , 2016, 24(7): 843-849.
Sen Xiong, Ting Sheng, Liang Kong, 等. Enhanced performances of polypropylene membranes by molecular layer deposition of polyimide[J]. 中国化学工程学报（英文版）, 2016,24(7):843-849. DOI： 10.1016/j.cjche.2016.02.002.

Sen Xiong, Ting Sheng, Liang Kong, Zhaoxiang Zhong, Jun Huang, Yong Wang. Enhanced performances of polypropylene membranes by molecular layer deposition of polyimide[J]. , 2016, 24(7): 843-849. DOI： 10.1016/j.cjche.2016.02.002.

摘要

Abstract

Molecular layer deposition (MLD) for the deposition of polyimide (PI) at lowtemperature of 110℃ has been firstly introduced into the field of membrane separation.With the optimized MLD deposition parameters

such low deposition temperature has successfully expanded the application of MLD for the surface modification of polymeric materials. Globular PI particulates grow on both the free surfaces as well as the pore walls of the polypropylene (PP) membranes as isolated islands during progressive precursor exposures. The PI-deposited PP membranes exhibit synergistically improved performances in various aspects. Evidently improved surface hydrophilicity and permeation performance (30%) have been achieved

via

the MLD deposition of polyimide films. The overall separation efficiency maintained higher than 85% even after 250 cycles of MLD deposition. More importantly

the thermal stability has been improved and the integrity of the porous structure for PI-deposited PP membranes has been well preserved even after harsh treatment

which ensures its potential application in industries.

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