کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
626836 | 1455448 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and characterization of sulfonated poly(arylene ether ketone ketone sulfone)s for ion exchange membranes
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
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چکیده انگلیسی
Sulfonated poly(arylene ether ketone ketone sulfone)s (SPAEKKS) copolymers were prepared by aromatic nucleophilic polycondesation. The SPAEKKS membranes were characterization using FT-IR, DSC, TGA and TEM. The water uptake, IEC, transport parameters (H+, Na+ and K+), oxidative and thermal stability and mechanical strength of membranes were comprehensively investigated. This study found that the SPAEKKS-4 showed a good combination of the ion diffusion coefficient (DH+: 1.01Ã10â10;DNa+: 5.85Ã10â11; DK+: 1.68Ã10â10), excellent mechanical strength (tensile strength: 55.3MPa; tensile modulus: 1.74 GPa), acceptable water uptake (26-54 wt%), favourable oxidative stability (oxidative stability time reached 29 h) and good thermal properties (Tg above 300°C, Td5% above 270°C). It suggested that the SPAEKKS membrane was promising for possible use as an ion exchange membrane.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 242, Issues 1â3, June 2009, Pages 236-244
Journal: Desalination - Volume 242, Issues 1â3, June 2009, Pages 236-244
نویسندگان
Zhe Wang, Hongzhe Ni, Mingyao Zhang, Chengji Zhao, Hui Na,