热固性聚合物
材料科学
弹性体
热塑性弹性体
无环二烯复分解
共聚物
单体
双环戊二烯
聚合物
聚合
降冰片烯
复分解
高分子化学
热塑性塑料
开环复分解聚合
有机化学
复合材料
化学
出处
期刊:Nature Synthesis
[Springer Nature]
日期:2022-09-29
卷期号:1 (12): 956-966
被引量:19
标识
DOI:10.1038/s44160-022-00163-9
摘要
Commercially available synthetic polymers have a variety of properties that range from ultrarigid thermosets to high-performance elastomers and include thermoplastic materials in between. However, their superior properties, such as durability and strength, are also responsible for their environmental persistence. The development of degradable and recyclable polymers is an attractive strategy to tackle this accumulation. Here we report cyclic–acyclic monomers metathesis polymerization to produce degradable thermoset, thermoplastic and elastomeric polymers. Specifically, metathesis-based copolymerization of dicyclopentadiene with a series of commercially available or easily accessible diene comonomers that bear degradable moieties can afford degradable polydicyclopentadiene thermosets. The use of triene comonomers can increase the cross-linking density and improve material properties. Copolymerization of these diene comonomers with cyclooctene or norbornene can afford degradable linear thermoplastic polymers. The introduction of a branched third comonomer leads to the formation of degradable elastomers. The material properties and degradability through different routes (including fluoride, acid and base treatment) of these polymers are investigated.
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