Sustainable ABA triblock methacrylate copolymers incorporating both high and low Tg terpene-derived monomers
Sustainable ABA triblock methacrylate copolymers incorporating both high and low Tg terpene-derived monomers
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DOI：
10.1016/j.eurpolymj.2022.111567
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发表时间：
2022-09-16
影响因子：
6
通讯作者：
Howdle, Steven M.
中科院分区：
文献类型：
--
作者：
Atkinson, Rachel L.;Elsmore, Matthew;Howdle, Steven M.
我们报道了以天然丰富的β-蒎烯为原料，合成了新型的三萜类单体：丙烯酸诺品酯和甲基丙烯酸诺品酯。当通过自由基聚合合成时，观察到聚（甲基丙烯酸诺平酯）的非常高的Tg值，并且通过RAFT聚合已经产生了定义明确的聚合物。这种令人兴奋的新型高Tg材料有望成为热塑性弹性体中的硬嵌段。阿坝三嵌段共聚物已被合成，其中还包括低Tg的可再生软嵌段，聚（四氢香叶醇甲基丙烯酸酯），使用发散的，双官能RAFT聚合方法。已经研究了初始相分离行为和粘合性能，以突出这些共聚物材料作为可再生来源的热塑性弹性体的潜力。
We report the synthesis of novel terpene-based monomers: nopinyl acrylate and methacrylate, from naturally abundant beta-pinene. A very high Tg value was observed for poly(nopinyl methacrylate) when synthesised by free radical polymerisation, and well-defined polymers have been produced via RAFT polymerisation. This exciting new high Tg material shows promise as a hard block in thermoplastic elastomers. ABA triblock copolymers have been synthesised which also incorporate a low Tg renewable soft block, poly(tetrahydrogeraniol methacrylate), using a divergent, difunctional RAFT polymerisation method. Initial phase separation behaviour and adhesive properties have been investigated to highlight the potential of these copolymer materials as renewably sourced thermoplastic elastomers.