WANG Chao, PAN Nengxiu, LU Dan, LIAO Junbin, SHEN Jiangnan, GAO Congjie. Preparation of homogeneous anion exchange membrane based on quaternized PVC for electrodialysis[J]. CIESC Journal, 2019, 70(4): 1620-1627
WANG Chao, PAN Nengxiu, LU Dan, LIAO Junbin, SHEN Jiangnan, GAO Congjie. Preparation of homogeneous anion exchange membrane based on quaternized PVC for electrodialysis[J]. CIESC Journal, 2019, 70(4): 1620-1627DOI: 10.11949/j.issn.0438-1157.20181041.
Preparation of homogeneous anion exchange membrane based on quaternized PVC for electrodialysis
This work presents the preparation of homogeneous anion exchange membrane (AEM) based on quaternized polyvinyl chloride (PVC)
via
straight forward quaternization of PVC with 1-methylimidazole (
N
-MI). In particular
the preparation avoids the use of toxic chloromethylation. The optimized AEM PVC-
N
-MI-5 shows ion-exchange capacity (IEC) and transport number of 2.89 mmol·g
–1
and 98.4%
respectively. The water uptake and swelling ratio are 4.24% and 0.21%
lower than the commercial AEM JAM-5 (4.87% and 3.33%). The NaCl removal ratio
current efficiency and energy consumption of the as-prepared AEM were 98.38%、55.8% and 5.1 kW·h·(kg NaCl)
-1
respectively
comparable to commerical JAM-5(93.0%
55.2% and 4.6 kW·h·(kg
NaCl)
-1
). The cost-effective PVC and relatively good performance are suggestive of the potential electrodialysis application.
关键词
Keywords
references
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