Enhancement of proton conductivity of sulfonated polystyrene membrane prepared by plasma polymerization process

Bulletin of materials science

Arup Ratan Pal¹  Aziz Khan¹  Devasish Chowdhury¹  Joyanti Chutia¹  Bhabesh Kumar Nath¹  Heremba Bailung¹  Nirab Chandra Adhikary¹  Neelotpal Sen Sarma¹ 

[1] Physical Science Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati 781 035, India$$Physical Science Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati 781 035, IndiaPhysical Science Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati 781 035, India$$

关键词: Plasma polymerization process;    ion exchange capacity;    proton conductivity;    thermal stability.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

This work reports the achievement of higher proton conductivity of polystyrene based proton exchange membrane synthesized in a continuous RF plasma polymerization process using two precursors, styrene (C₈H₈) and trifluoromethane sulfonic acid (CF₃SO₃H). The chemical composition of the developed membranes is investigated using Fourier transform infrared spectroscopy and energy dispersive spectroscopy. Scanning electron microscopy has been used for the study of surface morphology and thickness measurement of the membrane. The membranes deposited in the power range from 0.114 to 0.318 Wcm^-2 exhibit a lot of variation in the properties like proton transport, water uptake, sulfonation rate, ion exchange capacity and thermal behaviour. The proton conductivity of the membranes is achieved up to 0.6 Scm^-1, measured with the help of potentiostat/galvanostat. The thermogravimetric study of the plasma polymerized membrane shows the thermal stability up to 140 °C temperature.

【 授权许可】

Unknown