Aromatic foldamers as molecular springs in network polymers. Issue 37 (20th April 2022)

• Record Type: Journal Article
• Authors: Miller, K. Andrew; Dodo, Obed J.; Devkota, Govinda Prasad; Kirinda, Viraj C.; Bradford, Kate G. E.; Sparks, Jessica L.; Hartley, C. Scott; Konkolewicz, Dominik
• Is Part Of: Chemical communications. Volume 58:Issue 37(2022)
• Page Start: 5590
• Page End: 5593
• Publication Date: 2022-04-20
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc01223e
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Aromatic foldamer based networks are developed, where the foldamer unit acts as a molecular spring. Energy dissipation increases with the number of turns in the foldamer, consistent with mechanical unfolding of the molecular spring. Abstract : Polymer networks crosslinked with spring-like ortho -phenylene ( o P) foldamers were developed. NMR analysis indicated the o P crosslinkers were well-folded. Polymer networks with o P-based crosslinkers showed enhanced energy dissipation and elasticity compared to divinylbenzene crosslinked networks. The energy dissipation was attributed to the strain-induced reversible unfolding of the o P units. Energy dissipation increased with the number of helical turns in the foldamer.