Work

Morphology and thermal kinetics of electron beam irradiated polyetherimide/ polylactic acid (PEI/PLLA) blends

Year: 2025

Type: article

Abstract: This research describes the effect of electron beam irradiation on the morphological properties and the thermal kinetics of polyetherimide/polylactic acid (PEI/PLLA) blends. We prepared blends based on different ratios by dissolving them in chloroform to form thin films through casting their solutions. These blend films were then subjected to the electron beam irradiation with the resulting films being thoroughly examined by various techniques including thermogravimetric analysis, differential scanning calorimetry, and scanning electron microscopy. The thermal stability of the films was further investigated by the determination of the activation energy by two distinct approaches relying on the Broido and Coats-Redfern approximation equations. Based on weight loss and reaction rate, the thermogravimetric analysis (TGA) results showed that, adding up to 10 % of PLLA to the PEI/PLLA blends improved the thermal stability. The glass transition temperature (Tg) of PEI or PLLA was not revealed by the differential scanning calorimetry (DSC) scans; but DSC showed the existence of compatibility by revealing a new single glass transition.

Source: Journal of Radiation Research and Applied Sciences

DOI: 10.1016/j.jrras.2025.101399

Author: Abdullah Ali Alamri

Institution: Jazan University

Language: English

Topic: Polymer crystallization and properties

Subfield: Polymers and Plastics

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,400

Funders: Jazan University, Deanship of Scientific Research, King Saud University