完全可回收和坚固的热塑性弹性体来自简单的生物来源的δ-valerolactones
Kai Ma1, Hai-Yan An1, Jiyun Nam2
1School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
Nature communications
|September 10, 2024
概括
研究人员使用δ-valerolactone开发了新的生物基热塑性弹性体 (TPEs). 与以石油为基础的替代品相比,这些TPE提供了完全的化学可回收性和优越的性,解决了可持续材料的关键差距.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 可持续的高分子.
背景情况:
- 热塑性弹性体 (TPE) 是至关重要的,但通常是以石油为基础的,不可回收的.
- 开发具有高性能,生物基的,完全可化学回收的TPE仍然是一个重大挑战.
- 现有的TPE缺乏基于生物的选择,其机械性能与传统材料相匹配或超过.
研究的目的:
- 合成新型,生物基和化学可回收的热塑性弹性体 (TPE).
- 为了在TPE中实现与基于石油的对应物相比或优于TPE的高机械性能.
- 克服循环TPE块共聚合物合成和脱聚合方面的挑战.
主要方法:
- 使用的生物来源的δ-valerolactone (δVL) 和它的α-基替代衍生物.
- 合成的全δVL基聚三阻合物共聚合物 (三BCP).
- 研究了合成TPE的自我组装和脱聚合特性.
主要成果:
- 开发了基于δVL的全聚三BCPTPE,具有完全的闭环化学可回收性.
- 获得的性比商业聚烯基基TPE高2.5至3.8倍.
- 通过结晶驱动的自我组装观察到圆柱形态,有助于增强性质.
结论:
- 从 δVL.成功地创建了高性能,生物基和化学可回收的TPE.
- 证明了可持续热塑性弹性体具有卓越机械性能的可行途径.
- 开发的TPE为不可回收的石油基材料提供了一个有希望的替代品.
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