Work

Ultrasound-Assisted Degradation of Stimuli-Sensitive Polymers which Generate Bubbles using TiO2 and Photoacid Generators: Properties and Reaction Mechanism

Year: 2025

Type: article

Abstract: Poly(tert-butyl methacrylate) (PtBMA) and poly(1-methyl-1-(6-methyl-7-oxabicyclo[4.1.0]hept-3-yl)ethyl methacrylate) (PMOBH), a type of degradable polymers, which generate gaseous or volatile compounds, such as isobutene and limonene, were decomposed after ultrasound-irradiation and subsequent heating in the presence of titanium oxide (TiO2) and a photoacid generator (PAG). The decomposition behaviors of PtBMA or PMOBH containing TiO2 and PAG were investigated and discussed in terms of the chemical structures of the polymers and reaction mechanism. We believe that the degradation contributes to reduce environmental impact such as the easy recycling of composite materials.

Source: Journal of Photopolymer Science and Technology

DOI: 10.2494/photopolymer.38.383

Authors: Haruyuki Okamura, Keisuke Oshima, Kohji Ohno

Institution: Osaka Metropolitan University

Language: English

Topic: Photopolymerization techniques and applications

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: diamond

Funder: Core Research for Evolutional Science and Technology