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Issue 21, 2020
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Photoinduced cationic polycondensation in solid state towards ultralow band gap conjugated polymers

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Abstract

A photoinduced cationic polycondensation towards the synthesis of a thieno[3,4-b]thiophene (TT) based homopolymer PTT-L was described. The reaction mechanism was investigated by employing a series of control experiments. It was found that the polymerization initiated with a light-induced radical formation, followed by a cationic propagation, all in solid state, at room temperature, and without any catalyst or solvent. In addition, a reference polymer (PTT-Ni) was synthesized via Kumada catalyst transfer polycondensation (KCTP) to assist in structural characterization of polymer PTT-L. It was shown that both polymers exhibit analogous optical, thermal, electrochemical and electrical properties. This polymerization process can be utilized as a mean to form patterned PTT-L films.

Graphical abstract: Photoinduced cationic polycondensation in solid state towards ultralow band gap conjugated polymers

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Supplementary files

Article information


Submitted
10 Mar 2020
Accepted
20 Apr 2020
First published
20 Apr 2020

J. Mater. Chem. C, 2020,8, 7026-7033
Article type
Paper

Photoinduced cationic polycondensation in solid state towards ultralow band gap conjugated polymers

X. Liu, V. Sharapov, Z. Zhang, F. Wiser, M. A. Awais and L. Yu, J. Mater. Chem. C, 2020, 8, 7026
DOI: 10.1039/D0TC01257B

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