Mechanochromic Copolymers with a Rhodamine-Rich Block

IF 5.1 1区化学 Q1 POLYMER SCIENCE

Macromolecules Pub Date : 2025-02-26 DOI:10.1021/acs.macromol.4c02818

Shuaipeng Zhang, Yifei Gao, Yaxin Wang, Mengjiao Wu, Xiaoshuai Huang, Zhengjin Wu, Jianhui Wang, Yulan Chen, Yuan Yuan

引用次数: 0

Abstract

A new class of multirhodamine-based macromechanophores (Rh-PETs) are synthesized. Chain extension of Rh-PETs leads to a series of high mechanophore content copolymers including Rh-PET containing poly(methyl acrylate)s (Rh-PET-PMAs) and polyurethanes (Rh-PET-PUs). This platform allows for systematic analyses of mechanochromic properties of the polymers under sonication in the solution state and tension/compression in the bulk state in terms of their rhodamine content and molecular weight. Compared to their monorhodamine analogues, Rh-PET-PMAs and Rh-PET-PUs exhibit more efficient mechanochemical ring opening of rhodamine, reduced force threshold, and improved bulk mechanical properties. This design is thus revealed as a versatile methodology to promote the mechanochromic sensitivity of Rh-based stress-reporting polymers.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Macromolecules 工程技术-高分子科学

CiteScore

9.30

自引率

16.40%

发文量

942

审稿时长

2 months

期刊介绍： Macromolecules publishes original, fundamental, and impactful research on all aspects of polymer science. Topics of interest include synthesis (e.g., controlled polymerizations, polymerization catalysis, post polymerization modification, new monomer structures and polymer architectures, and polymerization mechanisms/kinetics analysis); phase behavior, thermodynamics, dynamic, and ordering/disordering phenomena (e.g., self-assembly, gelation, crystallization, solution/melt/solid-state characteristics); structure and properties (e.g., mechanical and rheological properties, surface/interfacial characteristics, electronic and transport properties); new state of the art characterization (e.g., spectroscopy, scattering, microscopy, rheology), simulation (e.g., Monte Carlo, molecular dynamics, multi-scale/coarse-grained modeling), and theoretical methods. Renewable/sustainable polymers, polymer networks, responsive polymers, electro-, magneto- and opto-active macromolecules, inorganic polymers, charge-transporting polymers (ion-containing, semiconducting, and conducting), nanostructured polymers, and polymer composites are also of interest. Typical papers published in Macromolecules showcase important and innovative concepts, experimental methods/observations, and theoretical/computational approaches that demonstrate a fundamental advance in the understanding of polymers.