A well-controlled piezoelectrically-mediated reversible addition-fragmentation chain transfer polymerization (piezo-RAFT) was carried out in an ultrasound (US) bath (40 kHz) with piezoelectric ZnO nanoparticles as the mechano-chemical transducer. The resulting polymer had predictable molecular weight, high end-group fidelity, low dispersity and capacity for chain extension. The effects of monomer, dithiocarbonyl disulfide and ZnO loading were studied. This chemistry was further adopted in curing of composite resins to circumvent the light penetration limit of UV curing. This work expand the scope of piezoelectrically-mediated chemistry and show its good potential in curing applications.

Piezoelectrically mediated reversible addition-fragmentation chain transfer polymerization

ACS Spring 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.