可逆热致变色聚二乙烯的制备及其结构-性能调控机制

IF 4.1 2区 化学 Q2 POLYMER SCIENCE
Zhi-Qing Ge, Shuo Yan, Zu-Xiong Pan, Shan Lei, Xuan-Zhi Mao, Chu Zhao, Mo-Zhen Wang, Xue-Wu Ge
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引用次数: 0

摘要

可逆热致变色聚二乙炔(PDA)材料的热致变色机理和结构-性能调控原理一直是一个具有挑战性的问题。本研究以 10,12-五碳二炔酸 (PCDA) 为原料,通过酯化或酰胺化反应合成了一系列含有苯基、酰胺基或羧基的二乙炔单体 (m-PCDA)。研究并详细讨论了 m-PCDA 分子中官能团的数量和分布对其固态聚合能力的影响,以及相应聚合物(m-PDA)的热致变色机理。结果表明,同时含有苯环和可形成氢键作用的基团的 m-PCDA 单体具有很强的分子间相互作用,易于在 254-nm 紫外光照射下进行固相聚合,得到相应的新型热致变色 m-PDA 材料。m-PDA 的热致变色行为取决于其熔融过程。初始变色温度(蓝色到红色)由起始熔化温度决定,而通过重复加热-冷却处理可实现可逆颜色恢复的温度范围则由其熔化范围决定。根据所提出的 PDA 热致变色机理,通过在线性二乙炔单体的分子结构中适当引入苯环和可形成氢键相互作用的基团,可以设计和合成各种具有精确热致变色温度和可逆热致变色温度范围的新型 PDA 材料。这项工作为可逆热致变色 PDA 材料的精确分子结构设计和性能调控提供了一个视角。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Preparation and Structure-Property Regulation Mechanism of Reversible Thermochromic Polydiacetylene

The thermochromic mechanism and the structure-property regulation principle of reversible thermochromic polydiacetylene (PDA) materials have always been a challenging issue. In this work, a series of diacetylene monomers (m-PCDA) containing phenyl and amide or carboxyl groups were synthesized from 10,12-pentacosadiynoic acid (PCDA) through the esterification or amidation reactions. The effects of the number and the distribution of the functional groups in m-PCDA molecules on their solid-state polymerization capability, and the thermochromic mechanism of their corresponding polymers (m-PDA) were investigated and discussed in detail. The results show that the m-PCDA monomers containing both benzene ring and groups that can form hydrogen bonding interactions have strong intermolecular interaction, and are easy to carry out the solid phase polymerization under 254-nm UV irradiation to obtain the corresponding new thermochromic m-PDA materials. The thermochromic behavior of m-PDA depends on its melting process. The initial color-change temperature (blue to red) is determined by the onset melting temperature, and the temperature range in which reversible color recovery can be achieved by repeat heating-cooling treatment is determined by its melting range. According to the proposed thermochromic mechanism of PDA, various new PDA materials with precise thermochromic temperatures and reversible thermochromic temperature ranges can be designed and synthesized through the appropriate introduction of benzene ring and groups that can form hydrogen bonding interactions into the molecular structure of linear diacetylene monomer. This work provides a perspective to the precise molecular structure design and the property regulation of the reversible thermochromic PDA materials.

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来源期刊
Chinese Journal of Polymer Science
Chinese Journal of Polymer Science 化学-高分子科学
CiteScore
7.10
自引率
11.60%
发文量
218
审稿时长
6.0 months
期刊介绍: Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985. CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.
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