Binary Copolymerization by Ring-Opening Metathesis Polymerization of Norbornene-Type/Cyclooctene-Type Macromonomers

作者：X.Q Wang, Ning Ren, Mengqi Ge, Xinwei Chen, Liang Wu, Xinyuan Zhu · 发表于：ACS Applied Polymer Materials · 年份：2025 · DOI：10.1021/acsapm.5c01097 · 被引用次数：3 · 研究领域：Synthetic Organic Chemistry Methods、Advanced Polymer Synthesis and Characterization、Model-Driven Software Engineering Techniques

The development of polymerization mechanisms brings both opportunities and challenges to research on copolymerization. The breakthrough in radical polymerization, anionic polymerization, and ring-opening metathesis polymerization has made it possible to realize copolymerization of macromonomers with their molar mass ranging from 10 3 Da to 10 5 Da. Different from the copolymerization of small-molecule monomers, the copolymerization of macromonomers is influenced by the size of the monomer and the topology of the chain segment linked to the living polymerization center. To investigate the copolymerization between macromonomers, macromonomers of different molar mass, polymerizable terminal functional group, side chain, and target degree of polymerization (DP) are copolymerized and studied. Well-established copolymerization models include the nonterminal model using the Beckingham–Sanoja–Lynd (BSL) method and the terminal model using the Meyer–Lowry method. Besides, a binary copolymerization model established on the kinetic difference between homopolymerization and copolymerization was also used for kinetic analysis. This method allowed us to quantify the influence caused by the addition of another macromonomer during the copolymerization process through the calculation of the hybrid constants, which could be converted to reactivity ratios directly, affording a helpful complement to the nonterminal model and terminal model. The analysis over polymerization kinetics suggested tha...