Water-swollen cation-exchange membranes prepared using poly(vinyl alcohol) (PVA)/poly(styrene sulfonic acid-co-maleic acid) (PSSA-MA)
2014-08-19 10:07
浏览:176次
分享:
资料摘要:
Awater-swollen type of poly(vinyl alcohol) (PVA)/poly(styrene sulfonic acid-co-maleic acid) (PSSA-MA) cation-exchange
membrane was prepared and characterized in terms of its electrochemical properties including ion-exchange capacity (IEC),
electrical resistance, and transport number, etc. PVA/PSSA-MA membranes exhibited low electrical resistance and highly
swelling property. In spite of 2–4 times higher water swelling ratio (WSR) than that of CMX (Tokuyama Corp., Japan), the
transport number of the prepared membrane was comparable to that of the commercial membrane (tn > 0.93). Moreover, the
electric resistance of PVA/PSSA-MA membrane was measured as low as 1.0–1.5cm2. Further, in this study, interrelation
between the membrane characteristics and crosslinking was investigated, and the result exhibited that the crosslinking degree is one of major factors affecting the ion transport through a water-swollen ion-exchange membrane (IEM).
? 2002 Elsevier Science B.V. All rights reserved.
下载本篇资料:
utolab电化学工作站用于制备水膨胀性阳离子交换膜.pdf
531KB
相关资料
瑞士万通OMNIS奥秘一代全新电位滴定平台
包含OMNIS详细的主要功能和特点
以及各种仪器参数等等
简单 经济 耐用
?智能型离子色谱系统
?操作便捷,性能稳定
?测定结果准确可靠
?测定各种样品中的阴离子、阳离子及其它极性物质
腐蚀的基本概念--腐蚀主要就是金属的退化和钝化,最主要的一个例子就是钢中贴的腐蚀,大部分腐蚀属于电化学反应......
加100mL无隔膜库仑法醛酮试剂于滴定杯中,并滴定至无水(预滴定)。用注射器加入样品适量,测定水分。测定酮类样品的水分,要使用库仑法醛酮专用试剂