• Variation in viscosity and ion conductivity of a polymer–salt complex exposed to gamma irradiation

• Fulltext

https://www.ias.ac.in/article/fulltext/pram/074/02/0271-0279

• Keywords

Gamma irradiation; polymer electrolyte; viscosity; ion conductivity.

• Abstract

We study changes in microstructure and resulting changes in the properties of PEO($1 − x$)–NH4 ClO4 (𝑥) samples where $x = 0.18$, when irradiated with gamma doses varying up to 50 kGy. Viscosities of aqueous solutions of the irradiated samples give an idea of the change in molecular weight and show correlation with ion conductivity. On the whole, there is a chain scission on irradiation, though there is evidence of some cross-linking at higher doses. The ion conductivity shows a strong increase for an irradiation of 35 kGy. DSC studies indicate a decrease in crystallinity with gamma dose.

• Author Affiliations

1. Physics Department, Condensed Matter Physics Research Centre, Jadavpur University, Kolkata 700 032, India
2. Material Science Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
3. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700 064, India

• Pramana – Journal of Physics

Volume 96, 2022
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