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Structure and transport properties of polyvinyl chloride-based heterogeneous cation-exchange membrane modified by additive blending and sulfonation
Khoiruddin K.a, Ariono D.a, Subagjo S.a, Wenten I.G.a
a Chemical Engineering Department, Institut Teknologi Bandung, Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020 Elsevier B.V.In this work, the structure-performance relationship of modified heterogeneous ion-exchange membranes (IEMs) was investigated by the microheterogeneous model. Polyvinyl chloride (PVC)-based IEM has been modified by introducing hydrophilic additive and immersing in sulfuric acid solution. The modified membrane has displayed a high degree of structural heterogeneity with inter-gel phase fractions (f2) of 0.28 to 0.43. The α value isaround 0.20–0.31 which indicates that the prepared membranes have a randomly distributed conductive phase. In general, the inter-gel phase fraction (f2) has a positive effect on membrane conductivity. However, membrane permselectivity decreases at higher inter-gel phase fraction. The addition of hydrophilic polymer increases the fraction of inter-gel phase while the sulfuric acid immersion increases the gel-phase conductivity (kg). Moreover, it has been found that the permselectivity is linearly correlated to kg/f2.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Heterogeneous cation exchange membranes,Heterogeneous ion-exchange membranes,Membrane conductivity,Polyvinyl chloride (PVC),Randomly distributed,Structural heterogeneity,Structure performance,Sulfuric acid solution[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Electrochemical,Ion exchange,Membrane preparation,Polymeric membrane[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The authors gratefully thank the Indonesian Ministry of Research, Technology and Higher Education under the scheme of basic research program and Lembaga Pengelola Dana Pendidikan (LPDP), Indonesia (scholarship for K. Khoiruddin) for supporting this research.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1016/j.jelechem.2020.114304[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]