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Rod-like Transition First or Chain Aggregation First? Ordered Aggregation of Rod-like Poly(p-phenyleneethynylene) Chains in Solution

Abstract

Rod-like configuration of conjugated polymer chains with small energetic disorder has been the key to utilize the backbone as a highly electrically-conductive wires. The energetic disorder coupled with vibronic modes of the chains higher than 0.1 eV leads to localization of charges. Herein we have tracked precisely rod-like transition of poly(p-phenyleneethynylene) (PPE) chains as a function of temperature in the diluted solutions, showing steep elongation of persistence length at 230 K. The resulting rod-like configuration of PPE chains with extended electronic conjugation exhibited extremely small energetic disorder of ~70 meV, stabilized by subsequent polymer aggregate formation.

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Publication details

The article was received on 04 Sep 2019, accepted on 07 Oct 2019 and first published on 07 Oct 2019


Article type: Communication
DOI: 10.1039/C9CC06892A
Chem. Commun., 2019, Accepted Manuscript

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    Rod-like Transition First or Chain Aggregation First? Ordered Aggregation of Rod-like Poly(p-phenyleneethynylene) Chains in Solution

    Y. Hattori, N. Nishimura, Y. Tsutsui, S. Ghosh, T. Sakurai, K. Sugiyasu, M. Takeuchi and S. Seki, Chem. Commun., 2019, Accepted Manuscript , DOI: 10.1039/C9CC06892A

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