高等学校化学学报

高等学校化学学报

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原位多重光学监测的本体聚合

张瑞庆，尹扩，陈燕杰，顾凡，刘健，马骧   

  1. 华东理工大学化学与分子工程学院
  • 收稿日期:2026-01-28 修回日期:2026-03-02 网络首发:2026-03-10 发布日期:2026-03-10
  • 通讯作者: 刘健 E-mail:liujianecust@ecust.edu.cn
  • 基金资助:
    国家自然科学基金(批准号：22125803, 22308102, T2488302)和广西壮族自治区科学技术厅项目(批准号：AA23062016)资助

In Situ Multiple Optical Monitoring of Bulk Polymerization

ZHANG Ruiqingi, YIN Kuo, CHEN Yanjie, GU Fan, LIU Jian*, MA Xiang   

  1. School of Chemistry and Molecular Engineering, East China University of Science and Technology
  • Received:2026-01-28 Revised:2026-03-02 Online First:2026-03-10 Published:2026-03-10
  • Contact: Jian LIU E-mail:liujianecust@ecust.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.22125803, 22308102, T2488302) and the Guangxi Department of Science and Technology, China(No.AA23062016)

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摘要： 光学可视化是一种高灵敏度、非侵入且简便的原位监测本体聚合过程的方法。本文介绍了一种基于9,14-二苯基-9,14-二氢二苯并[a,c]吩嗪（DPAC）的分子，其在不同微环境下独特的激发态构象响应能够检测体系内的微观动态变化。在甲基丙烯酸甲酯（MMA）聚合过程中，体系从液态单体逐渐转变为固态聚合物。伴随这一过程，DPAC的荧光从红色转变为蓝色，反映了局部粘度增加与分子运动受限；随后，磷光逐渐增强且寿命延长，表明聚合物网络刚性逐步上升。通过基于比率荧光与磷光的双通道监测，该策略实现了本体聚合过程的可视化追踪。

关键词: 原位监测, 室温磷光, 振动诱导发光

Abstract: Optical visualization provides a highly sensitive, non-invasive, and straightforward approach for the in situ monitoring of bulk polymerization processes. This work describes a 9,14-Diphenyl-9,14-dihydrodibenzo[a,c]phenazine(DPAC)-based molecular, whose distinct excited-state conformational responses under different micro-environments enable the detection of microscopic dynamic changes within the system. During the polymerization of MMA, the system transitions from a liquid monomer to a solid polymer. Accompanying this process, the fluorescence of DPAC shifts from red to blue, reflecting the increase in local viscosity and the restriction of molecular motion. Subsequently, the gradual enhancement of phosphorescence and the extension of its lifetime indicate the rising rigidity of the polymer network. Through dual-channel monitoring based on ratio-metric fluorescence and phosphorescence, this strategy makes the visual tracking of bulk polymerization feasible.

Key words: In situ monitoring, Bulk polymerization, Vibration-induced emission

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