A New Class of Mechano-Responsive Polyurethane Via Anthracene -TAD Diels-Alder (DA) Click Chemistry.

ABSTRACT: Smart or stimuli-responsive polymers have garnered significant interest in the scientific community due to their response to different stimuli like pH, temperature, light, mechanical force, etc. Mechanophoric polymer is an intriguing class of smart polymers that respond to external mechanical force by producing fluorescent moieties and can be utilized for damage detection and stress-sensing assessment. In recent reports on mechanophoric polymers, different mechanophoric motifs such as spiropyran, rhodamine, coumarin, etc. are explored. This investigation reports a new kind of mechanophoric polyurethane (PU) adduct based on Diels-Alder (DA) click chemistry. Here, an anthracene(An)-end capped tri-armed urethane system is synthesized, followed by a DA reaction using bis-(1,2,4-triazoline-3,5-

SUBMITTER: Chakraborty S 

PROVIDER: S-EPMC11600686 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature