文章摘要
双胍化壳聚糖全互穿网络阴离子交换膜的制备及表征
Preparation and Characterization of Chitosan Biguanide Full Interpenetration Anion Exchange Membrane
  
DOI:10.16865/j.cnki.1000-7555.2018.06.006
中文关键词: 阴离子交换膜  双胍盐  壳聚糖  双氰胺
英文关键词: anion exchange-membrane  biguanide  chitosan  dicyandiamide
基金项目:辽宁省科技厅博士启动项目(20141126);辽宁省教育厅科学研究一般项目(L2013153);辽宁石油化工大学博士启动基金(2013XJJ-006)
作者单位
王一夫1, 崔 珺1, 王吉林1, 王璐璐1, 封瑞江1, 佟春城2 1. 辽宁石油化工大学 化学化工与环境学部辽宁 抚顺 113000 2. 中国石油抚顺石化分公司研究院分析研究所辽宁 抚顺 113004 
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中文摘要:
      以壳聚糖(CS)和双氰胺为原料,在一定温度下通过亲核加成合成壳聚糖双胍盐酸盐(CGH),并以三聚氰胺(MA)为交联中间体,戊二醛为交联剂制备具有全互穿结构的阴离子交换膜(CGH-MA)。对该系列膜进行了红外、热重分析以及力学性能等测试,并探讨了三聚氰胺含量对阴离子交换膜离子交换能力、导电能力以及耐碱稳定性的影响。实验结果表明,三聚氰胺含量为4 %时,该膜的离子交换能力最高可达2.47 mmol/g,70 ℃电导率达到4.4×10-2 S/cm,该膜在60 ℃ 2 mol/L KOH溶液中浸泡192 h后,电导率未有明显变化,表现出优异的耐碱稳定性。
英文摘要:
      A novel derivative, chitosan biguanide hydrochloride (CGH) was synthesized by nucleophilic addition process at a certain temperature using chitosan (CS) and dicyandiamide as raw materials. Then the anion exchange membrane (CGH-MA) with fully interpenetrating structure was prepared by using melamine (MA) as crosslinking intermediate and glutaraldehyde (GA) as crosslinking agent. The obtained membrane was characterized by FT-IR, TGA, mechanical properties measurement and so on, then effects of melamine content on IEC, OH- conductivity and alkaline stability of membrane were investigated. Results show that the prepared CGH-MA4% membrane with the highest IEC value of 2.47 mmol/g reaches a OH- conductivity of 4.4×10-2 S/cm at 70 ℃ and no obvious changes can be observed in OH- conductivity after immersing in 60 ℃ 2 mol/L KOH solution for 192 h, indicating an excellent alkaline stability.
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