Mechanical stability of cis, trans-poly(p-phenylene vinylenes). Issue 16 (3rd April 2023)

• Record Type: Journal Article
• Authors: Janpatompong, Yurachat; Suwada, Kamil; Turner, Michael L.; De Bo, Guillaume
• Is Part Of: Polymer chemistry. Volume 14:Issue 16(2023)
• Page Start: 1978
• Page End: 1982
• Publication Date: 2023-04-03
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/d3py00021d
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : The performance of flexible electronic devices must be stable to repeated mechanical deformation in use. We show that the structural and optical properties of cis, trans -PPVs are maintained when subjected to elongational forces during ultrasonication. Abstract : Understanding the stability of conjugated polymers towards mechanical stimuli is critical for optimizing the processing and use of these materials in a range of electronic and optoelectronic devices, such as transistors, light emitting diodes and solar cells. The fast-growing field of mechanochemistry aims to tame the destructive mechanical forces to perform specific chemical changes in mechanophores but it can also be used to probe the stability of conjugated polymers towards destructive mechanical forces. Using ultrasonication it is possible to benchmark the mechanical integrity of phenylenevinylene block copolymers and show, through experimental studies and DFT simulation, that conjugated olefins are highly stable to cis – trans isomerisation upon extensive elongation, a useful property for the development of flexible organic electronics.