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Properties of Proton Exchange Membranes Poly-ethylene Terephthalate (PET) Films Developed by Gamma Radiation Induced Grafting and Sulfonation Technique

机译:γ射线诱导的接枝和磺化技术制备的质子交换膜聚对苯二甲酸乙二醇酯(PET)薄膜的性能

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Proton exchange membranes (PEMs) were developed by radiation induced grafting of styrene onto poly ethylene terephthalate (PET) and linear low density polyethylene (LLDPE) membranes using two steps technique. Subsequent sulfonation on the PET films was conducted by chlorosulfonic acid (ClSO3H). The PET films in 45% styrene solution at 1500 krad dose has found to show the highest grafting (17.4%) in both techniques while the maximum degree of sulfonation was noticed to be 9% with a soaking time 150 minutes. Surface morphology was investigated from scanning electron microgram (SEM). Proton exchange capacity (PEC) was confirmed by pH change in 0.01 M NaCl solution. Optical and electrical characteristics of the PEMs were performed by the measurements of FTIR optical absorption, electrical impedance, and electrical resistance respectively.
机译:质子交换膜(PEMs)是通过辐射诱导的苯乙烯分两步技术接枝到聚对苯二甲酸乙二醇酯(PET)和线性低密度聚乙烯(LLDPE)膜上而开发的。随后通过氯磺酸(ClSO3H)在PET膜上进行磺化。发现在这两种技术中,在45%苯乙烯溶液中的1500 krad剂量下,PET膜均显示出最高的接枝率(17.4%),而在150分钟的浸泡时间下,最大磺化度为9%。从扫描电子显微图(SEM)研究了表面形态。质子交换容量(PEC)通过在0.01 M NaCl溶液中改变pH值进行确认。 PEM的光学和电气特性分别通过FTIR光学吸收,电阻抗和电阻的测量来执行。

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