Anthraquinodimethane‐Based Molecular Switches Tethered by Four‐Arm Star‐like Polymers

Author:

Yan Mengwen1,Hou Liman1,Deng Xianjun1,Shi Xinyuan1,Jiang Feng1,Wang Mingfeng1ORCID

Affiliation:

1. School of Science and Engineering The Chinese University of Hong Kong Shenzhen 518172 China

Abstract

AbstractMolecular switches that reversibly change their structures and physical properties are important for applications such as sensing and information processing at molecular scales. In order to avoid the intermolecular aggregation that is often detrimental to the stimuli‐responses of molecular switches, previous studies of molecular switches have been often conducted in dilute solutions which are difficult for applications in solid‐state devices. Here we report molecular design and synthesis that integrates anthraquinodimethane as molecular switching units into polymers with amenable processibility in solid states. Optical and electron spin resonance characterizations indicate that the four‐arm polymers of poly(ϵ‐caprolactone) or poly(D,L‐lactide) tethered from anthraquinodimethane slow down the dynamics of the conformational switching between the folded and the twisted conformations, enhance the photoluminescence in solid states and impart materials with a small energy gap from singlet ground state to thermally accessible triplet state.

Publisher

Wiley

Subject

General Chemistry,Catalysis,Organic Chemistry

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