Thiol-functionalized polymers have become a crucial class of materials due to their distinct chemical properties and versatile reactivity, leading to a broad spectrum of applications. Herein, we report the straightforward syntheses of a wide range of thiol-end-functionalized ring-opening metathesis polymerization (ROMP) polymers exploiting our previously reported catalytic ROMP mechanisms using suitable chain transfer agents. All the synthesized polymers were characterized via SEC, ¹H NMR spectroscopy and MALDI-ToF mass spectrometry techniques. Furthermore, the existence of thiol groups on the polymer chains was verified through the well-established thiol coating reaction on gold nanoparticle surfaces. We believe this method of synthesizing thiol-end-functionalized ROMP polymers (using a reduced amount of ruthenium metal compared to conventional living ROMP) will be of great importance to materials science and biochemical research.

中文翻译：

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巯基末端官能化 ROMP 聚合物的催化合成


巯基官能化聚合物由于其独特的化学性质和多功能的反应性而成为一类重要的材料，从而获得了广泛的应用。在此，我们报道了各种巯基末端官能化开环复分解聚合 （ROMP） 聚合物的直接合成，这些聚合物利用我们之前报道的催化 ROMP 机制，使用合适的链转移剂。通过 SEC、¹H NMR 波谱和 MALDI-ToF 质谱技术对所有合成的聚合物进行表征。此外，通过在金纳米颗粒表面上建立的巯基涂层反应，验证了聚合物链上硫醇基团的存在。我们相信这种合成巯基末端官能化 ROMP 聚合物的方法（与传统的活体 ROMP 相比，使用更少的钌金属）将对材料科学和生化研究具有重要意义。