Abstract In this work, we synthesized end group functionalization of the cis-Norbornene-5-6-endo-dicarboxylic anhydride species via the ring-opening metathesis polymerization (ROMP) of oxanorbornene derivatives generated a chiseled poly(cis-Norbornene-5-6-endo-Dicarboxylic anhydride) acrylate macromonomer. Further, acrylate oxanorbornene based macromonomer further polymerized via reversible addition fragmentation chain transfer (RAFT) polymerization technique. Chain transfer is exhibited in the structure during the radical polymerizations so that free radical polymerization could also be used to comb structure copolymers with a PDI value below 1.2 with the help of acrylate oxanorbornene. Atomic force microscopy reveals the comb shape of branched polymer brushes structure. This method involves polymerizable end-group attachment to a macromonomer, and the backbone of the comb polymer is created in a second step of the polymerization. We believe that this kind of comb structured polymers can be considered for different biological applications.

中文翻译：

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开环氧降冰片烯酐基大分子单体的自由基聚合方法

摘要 在这项工作中，我们通过氧降冰片烯衍生物的开环复分解聚合 (ROMP) 合成了顺式降冰片烯-5-6-内型二羧酸酐物种的端基官能化，生成了轮廓分明的聚（顺式-降冰片烯-5-6 -内-二羧酸酐）丙烯酸酯大分子单体。此外，丙烯酸酯氧降冰片烯基大分子单体通过可逆加成断裂链转移（RAFT）聚合技术进一步聚合。在自由基聚合过程中，结构中表现出链转移，因此自由基聚合也可用于在丙烯酸酯氧降冰片烯的帮助下梳理 PDI 值低于 1.2 的结构共聚物。原子力显微镜揭示了支化聚合物刷结构的梳子形状。该方法涉及将可聚合的端基连接到大分子单体上，并且梳形聚合物的主链在聚合的第二步中产生。我们相信这种梳状结构的聚合物可以考虑用于不同的生物应用。