Nonconventional fluorescent copolymers synthesized from cyclic carbonates and diazoacetates via a post-addition strategy

IF 6.8 2区化学 Q1 POLYMER SCIENCE

European Polymer Journal Pub Date : 2026-02-11 Epub Date: 2026-01-02 DOI:10.1016/j.eurpolymj.2025.114492

Xiang-Xiang Jia, Hong-Lei Li, Xiao-Jie Lu, Xiao-Chi Li, Zhi-Ling Ye, Xu Wang, Jun-Chuan Wang, Hui Wang, Xiang-Feng Wu

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Abstract

Aliphatic polycarbonates have attracted significant attention for their biodegradability and biocompatibility, yet there are also limitations impacting their applications, which usually need to be further optimized by post modification. Carbene polymerization of diazocompounds is an alternative method to undergo further modification for the aliphatic polycarbonates, due to its unique advantage of synthesizing highly functionalized polymers. In this work, the copolymerization of cyclic carbonates with diazoacetates was achieved through a post-addition strategy with the sequence of “cyclic monomer first added, followed by diazoacetate” catalyzed by Sn(Oct)₂. Notably, the resulting nonconventional cyclic carbonate-diazoacetate copolymers exhibit novel fluorescence property despite lacking traditionally known conjugated fluorescent chromophores. In addition, its thermal stability can also be adjusted conveniently via multiple approaches by varying the monomers, or altering the feed ratio of the two kinds of monomers, or regulating the molecular weight of the copolymers.

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由环碳酸盐和重氮乙酸酯通过加成策略合成的非常规荧光共聚物

脂肪族聚碳酸酯的生物可降解性和生物相容性引起了广泛的关注，但也存在影响其应用的局限性，通常需要通过后修饰进一步优化。重氮化合物羰基聚合是对脂肪族聚碳酸酯进行进一步改性的一种替代方法，由于其合成高功能化聚合物的独特优势。在这项工作中，通过Sn(Oct)2催化的“先加入环单体，然后再加入重氮乙酸酯”的后加成策略，实现了环碳酸盐与重氮乙酸酯的共聚。值得注意的是，尽管缺乏传统上已知的共轭荧光发色团，所得到的非常规环碳酸酯-重氮乙酸共聚物仍表现出新的荧光特性。此外，它的热稳定性也可以通过改变单体，或改变两种单体的投料比，或调节共聚物的分子量等多种途径来方便地调节。

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来源期刊

European Polymer Journal 化学-高分子科学

CiteScore

9.90

自引率

10.00%

发文量

691

审稿时长

23 days

期刊介绍： European Polymer Journal is dedicated to publishing work on fundamental and applied polymer chemistry and macromolecular materials. The journal covers all aspects of polymer synthesis, including polymerization mechanisms and chemical functional transformations, with a focus on novel polymers and the relationships between molecular structure and polymer properties. In addition, we welcome submissions on bio-based or renewable polymers, stimuli-responsive systems and polymer bio-hybrids. European Polymer Journal also publishes research on the biomedical application of polymers, including drug delivery and regenerative medicine. The main scope is covered but not limited to the following core research areas: Polymer synthesis and functionalization • Novel synthetic routes for polymerization, functional modification, controlled/living polymerization and precision polymers. Stimuli-responsive polymers • Including shape memory and self-healing polymers. Supramolecular polymers and self-assembly • Molecular recognition and higher order polymer structures. Renewable and sustainable polymers • Bio-based, biodegradable and anti-microbial polymers and polymeric bio-nanocomposites. Polymers at interfaces and surfaces • Chemistry and engineering of surfaces with biological relevance, including patterning, antifouling polymers and polymers for membrane applications. Biomedical applications and nanomedicine • Polymers for regenerative medicine, drug delivery molecular release and gene therapy The scope of European Polymer Journal no longer includes Polymer Physics.