Achieving performance-advantaged polydicyclopentadiene via sequential ring-opening metathesis polymerization and radical reaction,Polymer International

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Achieving performance-advantaged polydicyclopentadiene via sequential ring-opening metathesis polymerization and radical reaction
Polymer International ( IF 2.9 ) Pub Date : 2024-02-16 , DOI: 10.1002/pi.6619
Qingyan Zhan ₁ , Fei Huangfu ₁ , Po Yang ₁

Affiliation

Herein, we develop an approach to achieve performance-advantaged polydicyclopentadiene (PDCPD) via sequential ring-opening metathesis polymerization (ROMP) and radical reactions. We mix dicyclopentadiene (DCPD), Grubbs' catalyst and radical initiator in one pot, and then polymerize first at low temperature by ROMP and initiate radical reactions at elevated temperature. As a result of our strategy, the crosslink density of PDCPD increases, leading to outstanding performance. For instance, the glass transition temperature T_g of ROMP-prepared PDCPD is ca 155–175 °C, whereas the T_g of PDCPD prepared by this strategy can be increased to 191 °C and can be further enhanced to 216 °C after polymerization at 250 °C. We believe this can help researchers design and synthesize high performance ROMP-derived polymers and apply PDCPD in harsh conditions. © 2024 Society of Industrial Chemistry.

中文翻译：

通过连续开环易位聚合和自由基反应获得性能优势的聚二环戊二烯

在此，我们开发了一种通过连续开环复分解聚合（ROMP）和自由基反应获得性能优势的聚二环戊二烯（PDCPD）的方法。我们将二环戊二烯（DCPD）、格拉布斯催化剂和自由基引发剂混合在一锅中，然后通过ROMP首先在低温下聚合，并在高温下引发自由基反应。由于我们的策略，PDCPD 的交联密度增加，从而带来出色的性能。例如，ROMP制备的PDCPD的玻璃化转变温度Tg约为_155-175℃ ，而通过该策略制备的PDCPD的Tg可以提高到191℃，并且在聚合_后可以进一步提高到216℃。在250°C。我们相信这可以帮助研究人员设计和合成高性能 ROMP 衍生聚合物并在恶劣条件下应用 PDCPD。© 2024 工业化学学会。

更新日期：2024-02-16

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