大学化学 >> 2025, Vol. 40 >> Issue (4): 154-159.doi: 10.12461/PKU.DXHX202409010

所属专题: 高分子教育教学

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经典孕育创新——发光的超支化聚硅氧烷

颜红侠, 吴锐, 冯维旭, 赵艳, 闫毅   

  1. 西北工业大学化学与化工学院, 西安 710129
  • 收稿日期:2024-09-03 录用日期:2024-11-07 发布日期:2025-04-25
  • 通讯作者: 颜红侠 E-mail:hongxiayan@nwpu.edu.cn
  • 基金资助:
    陕西本科和高等继续教育教学改革研究项目(23BY012);第三批陕西省课程思政精品课程和教学团队(研究生教育类);研究生教育综合改革发展创新项目(KCJG202408)

Innovation Inspired by Classical Chemistry: Luminescent Hyperbranched Polysiloxanes

Hongxia Yan, Rui Wu, Weixu Feng, Yan Zhao, Yi Yan   

  1. School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
  • Received:2024-09-03 Accepted:2024-11-07 Published:2025-04-25
  • Contact: Hongxia Yan E-mail:hongxiayan@nwpu.edu.cn

摘要: 超支化聚硅氧烷作为一类特殊的非传统聚集诱导发光聚合物,以其独特结构、卓越性质及广泛应用在发光材料领域备受关注。本文从以Si―O―C为骨架结构的超支化聚硅氧烷发光性能的偶然发现出发,在经典的酯化反应原理启发下,创新性地发展了“酯交换缩聚法”。通过分子设计和结构调控,实现了超支化聚硅氧烷从蓝色到红色的多色荧光发射、高量子产率和长荧光寿命,并指出了其在离子检测、信息加密和活性氧清除等方面的应用。在一系列突破性进展的基础上,提出“经典孕育创新”的思想,激发学生的辩证思维和创新能力,以期为化学学科的教学提供“课程思政”参考。

关键词: 聚集诱导发光, 超支化聚硅氧烷, 发光聚合物, 思政案例

Abstract: As a special class of unconventional aggregation-induced emission (AIE) polymers, hyperbranched polysiloxanes have attracted much attention in luminescent materials due to their distinctive structure, excellent properties, and diverse applications. In this paper, starting from the incidental discovery of the luminescent properties of hyperbranched polysiloxanes with Si―O―C backbone structure, we innovatively developed the ‘transesterification polycondensation method’ inspired by the principle of classical esterification reaction. Through molecular design and structural modulation, the multicolor fluorescence emission from blue to red, high quantum yield and long fluorescence lifetime of hyperbranched polysiloxanes have been achieved. These materials also demonstrate practical applications in ion detection, information encryption, and reactive oxygen species (ROS) scavenging. Building on these breakthroughs, we present the concept of “Innovation Inspired by Classics” to cultivate students' dialectical thinking and innovative capabilities, while incorporating ideological and political elements into chemistry education.

Key words: Aggregation-Induced Emission, Hyperbranched polysiloxanes, Luminescent polymer, Ideological and political cases