Polymers based on 1,3-diene monomers play a pivotal role in many commercial elastomers and thermoplastic elastomers. This perspective summarizes the state of the art and recent developments in the living anionic polymerization of dienes, permitting to finely tune the properties of the resulting polymers. An emphasis is placed on novel biobased diene monomers (myrcene, farnesene, etc.) and polymerization solvents, which bear promise for more sustainable elastomers in the future. Furthermore, statistical copolymerization of dienes with vinyl monomers and the in situ monitoring of monomer gradients and formation of tapered di- and triblock copolymers due to disparate reactivity ratios is also reviewed. Thermoplastic elastomers based on tri- and multiblock architectures as well as recently reported diene-based polymer architectures are discussed as well. A summary of current challenges and future options for carbanionic diene polymerization concludes this short review article.

中文翻译：

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绿色视角推动阴离子二烯聚合复兴


基于 1,3-二烯单体的聚合物在许多商业弹性体和热塑性弹性体中发挥着关键作用。这一观点总结了二烯活性阴离子聚合的现有技术和最新进展，从而可以微调所得聚合物的性能。重点放在新型生物基二烯单体（月桂烯、金合欢烯等）和聚合溶剂上，它们有望在未来生产出更可持续的弹性体。此外，还回顾了二烯与乙烯基单体的统计共聚以及单体梯度的原位监测以及由于不同的反应率而形成的递变二嵌段和三嵌段共聚物。还讨论了基于三嵌段和多嵌段结构的热塑性弹性体以及最近报道的基于二烯的聚合物结构。这篇简短的评论文章总结了碳负离子二烯聚合当前的挑战和未来的选择。