CC BY-NC-ND 4.0 · Organic Materials 2021; 03(02): 309-320
DOI: 10.1055/a-1491-4818
Focus Issue: Supramolecular Optoelectronic Materials
Short Review

Solvent-Free Conjugated Polymer Fluids with Optical Functions

a   Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Boulevard, Nanshan, Shenzhen 518055, China
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a   Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Boulevard, Nanshan, Shenzhen 518055, China
b   Division of Soft Matter, Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
,
a   Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Boulevard, Nanshan, Shenzhen 518055, China
,
a   Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Boulevard, Nanshan, Shenzhen 518055, China
b   Division of Soft Matter, Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
c   International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
› Author Affiliations
Funding Information This study was supported by Grants-in-Aid for Scientific Research (JSPS KAKENHI Grant Number JP18H03922).


Abstract

Solvent-free fluidic materials possessing optoelectronic functions are expected to be major components in soft electronics applications. Conjugated polymers are promising targets for this purpose and their design approaches are classified into three types with respect to their structure: conjugation breaking (Type I), copolymerization with flexible polymers (Type II), and side chain engineering (Type III). In this short review, we highlight several early attempts to produce Type III conjugated polymers. We also present fully characterized Type III fluids recently developed by our group, with a brief summary of the structure–property relationship and fluidity-oriented functions.

Introduction

1 Polymer Design

1.1 Fluidity of Polymeric Materials

1.2 Type III CPs with T g < 25 °C

1.3 Fluidification of Polyfluorenes

1.4 Effect of Side Chain Length

2 Fluidity-Oriented Functions

2.1 Mechanofluorochromism

2.2 Consistent Luminescence in Wide Range of Elastic Moduli

2.3 Prediction of Viscoelasticity

Conclusions and Outlook



Publication History

Received: 31 March 2021

Accepted: 23 April 2021

Accepted Manuscript online:
26 April 2021

Article published online:
02 June 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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