Transport through track etched polymeric blend membrane

Bulletin of materials science

Vaibhav Kulshreshtha¹  N K Acharya¹  Y K Vijay¹  M Singh¹  B Tripathi¹  Kamlendra Awasthi¹ 

[1] Department of Physics, University of Rajasthan, Jaipur 302 004, India$$Department of Physics, University of Rajasthan, Jaipur 302 004, IndiaDepartment of Physics, University of Rajasthan, Jaipur 302 004, India$$

关键词: Polymer blend;    ion irradiation;    track etched membrane;    ion current;    gas separation.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Polymer blends of polycarbonate (PC) and polysulphone (PSF) having thickness, 27 𝜇m, are prepared by solution cast method. The transport properties of pores in a blend membrane are examined. The pores were produced in this membrane by a track etching technique. For this purpose, a thin polymer membrane was penetrated by a single heavy ion of Ni⁷⁺ of 100 MeV, followed by preferential chemical etching of the ion track. Ion permeation measurements show that pores in polymeric membrane are charged or neutralized, which depends upon the variation in concentration of the solvent. The ð‘�?�–ð�? curve at concentration, N/10, shows that the pores are negatively charged, whereas at concentration, N/20, the linear nature of ð‘�?�–ð�? curve indicates that the pores approach towards neutralized state and on further concentration, N/40, the pores become fully neutralized, consequently the rectifier behaviour of pores has been omitted.

【 授权许可】

Unknown