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化工新型材料  2018, Vol. 46 Issue (10): 195-199    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
半互穿网络结构聚离子液体增强嵌段聚醚 气体分离膜的制备及CO2渗透性研究
周小兰,彦晶晶,高慧,王傲生,白云翔
江南大学合成与生物胶体教育部重点实验室,化学与材料工程学院,无锡214122
Semi-interpenetrating polymer network membranes based on poly (ionic liquid) and Pluronic F127 for CO2 separation performance
Zhou Xiaolan,Yan Jingjing ,Gao Hui,Wang Aosheng, Bai Yunxiang
Key Laboratory of Synthetic and Biological Colloids,Ministry of Education, School of Chemical and Materials Engineering,Jiangnan University,Wuxi 214122
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摘要 结合聚离子液体(PIL)超强的CO2吸附能力和功能可设计性特征,以1-辛基-3-乙烯基咪唑六氟磷酸盐([voim][PF6])为聚合单体,聚氧乙烯-聚氧丙烯-聚氧乙烯三嵌段聚醚(PluronicF127)为线性聚合物,采用紫外光固化法制备了聚离子液体增强嵌段聚醚(F127/PIL)半互穿网络膜,研究了PIL与F127质量比对半互穿网络机械强度、微观形貌及CO2/N2渗透性能的影响。结果表明:与纯F127相比,F127/PIL半互穿网络膜具有良好的成膜性和机械性能,当F127与PIL质量比为30∶70时,半互穿网络膜的拉伸强度可达4.569MPa;随着PIL交联网络含量的增加,半互穿网络膜的CO2、N2扩散系数和渗透系数均提高,但CO2溶解度系数逐渐下降;当F127与PIL质量比为20∶80时,半互穿网络膜的CO2渗透系数达到155.59Barrer,CO2/N2选择性系数为24.16;随着温度的升高,F127/PIL半互穿网络膜的CO2和N2渗透系数和扩散系数均增加,溶解度系数降低。
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周小兰
彦晶晶
高慧
王傲生
白云翔
关键词:  聚离子液体  半互穿网络  气体分离      
Abstract: Based on the superior CO2 separation performance and tunable physicochemical nature of poly(ionic liquid) (PIL),a series of gas separation membranes with semi-interpenetrating polymer network (semi-IPN) structure were successfully synthesized from Pluronic F127 and crosslinked PIL.Compared with Pluronic F127,the obtained F127/PIL semi-IPN membranes displayed much improved mechanical strength and good film-forming property.The tensile strength of membranes containing 70% PIL was 4.569MPa.From gas permeation measurement results,the membranes demonstrated gradually higher CO2 permeability coefficient with the increase of PIL content,while CO2/N2 selectivity increased initially and then decreased slightly.The best CO2 permeability and CO2/N2 selectivity of membranes reached 155.59 Barrer and 24.16 respectively when PIL content was 80wt%.Moreover,the permeability of CO2 in membranes increased with increasing temperature across their glasstransition temperatures,while CO2/N2 selectivity decreased.
Key words:  poly(ionic liquid)    semi-interpenetrating polymer network    gas separation    membrane
               出版日期:  2018-10-20      发布日期:  2018-11-06      期的出版日期:  2018-10-20
作者简介:  周小兰(1981-),女,硕士,主要从事膜材料制备及应用研究工作。
引用本文:    
周小兰,彦晶晶,高慧,王傲生,白云翔. 半互穿网络结构聚离子液体增强嵌段聚醚 气体分离膜的制备及CO2渗透性研究[J]. 化工新型材料, 2018, 46(10): 195-199.
Zhou Xiaolan,Yan Jingjing ,Gao Hui,Wang Aosheng, Bai Yunxiang. Semi-interpenetrating polymer network membranes based on poly (ionic liquid) and Pluronic F127 for CO2 separation performance. New Chemical Materials, 2018, 46(10): 195-199.
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http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2018/V46/I10/195
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