Abstract

The development of degradable and recyclable polymers is an attractive strategy to tackle the post-consumption pollution issue of commercial plastics. Cyclic-acyclic monomers metathesis polymerization (CAMMP) has been recently reported to produce degradable thermoset, thermoplastic and elastomeric polymers, and their degradability is enabled with addition of various chemicals. In this contribution, we demonstrate that the utilization of diene comonomers containing photodegradable moiety can give access to thermoset and thermoplastic materials bearing photo-degradation capabilities The copolymerization of a series easily accessible diene comonomers bearing photodegradable ortho-nitrobenzyl moieties with dicyclopentadiene (DCPD) or cyclooctene (COE) leads to the formation of photodegradable pDCPD thermosets and pCOE thermoplastic polymers with mechanical properties comparable to their non-degradable counterparts. Most importantly, their photo-degradation properties can be efficiently tuned with the addition of ultraviolet absorber during in-situ polymerization.

中文翻译：

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环-非环单体复分解聚合以获得可光降解的聚二环戊二烯和类聚乙烯材料

摘要

开发可降解和可回收的聚合物是解决商用塑料消费后污染问题的一个有吸引力的策略。最近有报道称，环状-无环单体复分解聚合（CAMMP）可生产可降解的热固性、热塑性和弹性聚合物，并且通过添加各种化学品来实现其降解性。在这篇文章中，我们证明利用含有可光降解部分的二烯共聚单体可以获得具有光降解能力的热固性和热塑性材料一系列易于获得的带有可光降解邻硝基苯甲基部分的二烯共聚单体与二环戊二烯（DCPD）或环辛烯的共聚(COE) 导致形成可光降解的p DCPD 热固性材料和p COE 热塑性聚合物，其机械性能与不可降解的对应物相当。最重要的是，它们的光降解性能可以通过在原位聚合过程中添加紫外线吸收剂来有效调节。