Photo-Responsive Trithiocarbonate

Abstract

Title: Photo-responsive Trithiocarbonate

Author: Diana Leung; Christopher N. Bowman

Presenting Author: Diana Leung

The ability to create well-defined topography is useful in responsive surfaces and optics. To allow for photoinduced structural adaptation in elastomeric networks, a functional group that can rearrange in order to relieve stress is needed. Here, we used 1, which contains acrylate functional groups that undergo a Michael addition with PETMP and a trithiocarbonate core that subsequently is used for addition-fragmentation chain transfer (AFCT) with the acrylate in the presence of a photointiator. By incorporating the trithiocarbonate backbone, stress relaxation by rearrangement can occur, so that upon stretching followed by irradiation of the photoinitiator, the AFCT can occur, to produce a well-defined and controlled topography in the irradiated region.