Work

Exceptional Photorheological Switching of Solventless Polymer Networks Enabled by Precisely Architected Flexible Star Polysiloxanes

Year: 2025

Type: preprint

Abstract: We report the synthesis and photoresponsivity of precisely designed star-shaped poly(dimethyl siloxane) (PDMS) with anthracene end groups. These materials exhibit rapid ON–OFF photorheological switching with a greater than 25,000-fold change in the storage modulus. The effective utilization of flexible polymers and precisely defined polymer architectures offers a versatile platform for photorheological smart polymeric materials across a broad spectrum of applications.

Source: ChemRxiv

DOI: 10.26434/chemrxiv-2025-r1z3f

Authors: Satoshi Honda, Yi Zhang

Institutions: Kyushu University, The University of Tokyo

Language: English

Topic: Advanced Materials and Mechanics

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: University of Tokyo, Japan Society for the Promotion of Science, Advanced Low Carbon Technology Research and Development Program

Award: Development of Innovative Materials Based on the Chemistry of Polymer Topology Editing