Copolymer membrane preparation of 2-(N,N-dimethyl aminoethylme)and acrylonitrile and its gas permeance performance

SHEN Jiangnan; WU Liguang; ZHANG Lin; CHEN Huanlin; GAO Congjie

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Copolymer membrane preparation of 2-(N,N-dimethyl aminoethylme)and acrylonitrile and its gas permeance performance

更新时间：2025-12-10

- Copolymer membrane preparation of 2-(N,N-dimethyl aminoethylme)and acrylonitrile and its gas permeance performance
- CIESC Journal Issue 1, Pages: 169-174(2006)
- 作者机构：
  
  1. 浙江大学材料与化工学院,浙江,杭州,310027
  2. 国家液体分离膜工程技术研究中心,浙江,杭州,310012
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 January 2006，
  
  Published：25 January 2006
- 稿件说明：
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SHEN Jiangnan, WU Liguang, ZHANG Lin, et al. Copolymer membrane preparation of 2-(N,N-dimethyl aminoethylme)and acrylonitrile and its gas permeance performance[J]. CIESC Journal, 2006, (1): 169-174.
DOI：

SHEN Jiangnan, WU Liguang, ZHANG Lin, et al. Copolymer membrane preparation of 2-(N,N-dimethyl aminoethylme)and acrylonitrile and its gas permeance performance[J]. CIESC Journal, 2006, (1): 169-174. DOI：

摘要

采用水溶液沉淀法合成了甲基丙烯酸二甲氨基乙酯（DM）和丙烯腈（AN）的共聚物，用红外光谱、黏度法和X射线衍射分析了聚合物的结构.实验考察了反应条件对共聚物结构的影响.在此基础上，通过溶液浇注法制备了甲基丙烯酸二甲氨基乙酯（DM）和丙烯腈（AN）的共聚物膜，研究了聚合物膜的CO2、CH4渗透性能.结果表明，由于共聚物中含有能与CO2进行可逆反应的叔胺基，共聚物膜表现出较好的CO2渗透性和CO2/CH4选择性，如在25℃、压力为1140 Pa时，CO2的渗透速率可达 3.53×10-12 cm3(STP)8226;cm-28226;s-18226;Pa-1 ， CO2/CH4 的理想分离因子达到104.5.利用膜吸附CO2和CH4后红外光谱的变化，分析了膜对CO2的促进传递机理.

Abstract

Poly(DM-co-AN) was synthesized by the usual radical polymerization of 2-(N

N-dimethyl aminoethyl methacrylate) and acrylonitrile.The chemical structure of the poly(DM-co-AN) was analyzed by viscosity measurement

elemental analysis

infrared spectrum(FTIR) and X-ray diffraction(XRD).The effect of reaction condition on chemical structure and the effects of carrier content

gas feed pressure and temperature on permeability of the facilitated transport membrane were investigated. The results showed that the membrane displayed a CO2 permeation rate of 3.53×10-12 cm3(STP)8226;cm-28226;s-18226;Pa-1 and CO2/CH4 ideal selectivity of 104.5 at 25℃

1140 Pa of gas pressure.Both CO2 permeation rate and selectivity of CO2/CH4 decreased with increasing pressure on feed gas.The facilitated transport mechanism of CO2 in membrane was analyzed by the infrared spectra of the membranes in different states.

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