A Facile Strategy for the Development of Recyclable Multifunctional Liquid Crystal Polymers via Post‐Polymerization Modification and Ring‐Opening Metathesis Polymerization

Author:

Zhao Xin1,Chen Yan1,Peng Bo1,Wei Jia1,Yu Yanlei12ORCID

Affiliation:

1. Department of Materials Science State Key Laboratory of Molecular Engineering of Polymers Fudan University 220 Handan Road Shanghai 200433 P. R. China

2. Yiwu Research Institute of Fudan University Chengbei Road Yiwu City Zhejiang 322000 P. R. China

Abstract

AbstractPost‐polymerization modification (PPM) offers a versatile approach for engineering multifunctional polymers, but this advantage has not been fully exploited to fabricate multifunctional liquid crystal polymers (LCPs). Here, we design a facile synthetic approach towards multifunctional LCP by combining the ring‐opening metathesis polymerization (ROMP) with PPM, in which ROMP helps to prepare a reactive LCP precursor with high molecular weight, and PPM provides a facilitation to introduce functional groups into the precursor. Consequently, a photo‐ and humidity‐responsive linear LCP (LLCP) is demonstrated to show the potential of this synthetic strategy to diversify functions of the LCPs. Under light irradiation and humidity changes, the deformation modes of the LLCP films are converted to complex shapes (bending, twisting, and curling). The obtained dual‐responsive LLCP with high molecular weight possesses excellent processability and recyclability, making it possible to construct 3D shape actuators with programmable deformation behaviors under light/humidity.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Shanghai

Publisher

Wiley

Subject

General Chemistry,Catalysis

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