可持续的聚烯酸聚醇基热塑性聚合物 (聚乙) 弹性体,具有卓越的机械性能和生物降解性
Jin-Hyeok Choi1, Jeong-Jae Woo1, Il Kim1
1School of Chemical Engineering, Pusan National University, Busandaehag-ro 63-2, Busan 46241, Republic of Korea.
Polymers
|August 12, 2023
概括
新的可生物降解热塑性弹性体 (TPEs) 使用聚烯酸 (PCL) 聚合物被开发出来. 这些基于PCL的TPE与传统的基于聚乙烯的TPE相比,显示出增强的机械强度和生物降解性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续材料 可持续材料
背景情况:
- 热塑性弹性体 (TPE) 为工业和生物医学用途提供独特的特性.
- 减少塑料垃圾和开发高性能材料是关键的挑战.
研究的目的:
- 为了合成可生物降解的聚烯酸 (PCL) 聚.
- 开发使用PCL作为软片段的新型热塑性聚乙 (聚乙) 弹性体.
- 为了比较基于PCL的TPE与传统的聚乙烯 (乙) TPE的性能.
主要方法:
- 使用异质双金属化物催化剂对e-caprolactone进行环开聚合,以产生α,ω-基终结的PCL多.
- 使用PCL聚合物合成热塑性聚合物 (聚乙) 弹性体.
- 基于PCL的TPE与基于PTMEG的TPE的机械性能和生物降解性的表征和比较.
主要成果:
- 成功合成了具有受控分子量和低多分散性的PCL多.
- 与基于PTMEG的TPE (23.4MPa) 相比,基于PCL的TPE显示出更高的最终强度 (39.7MPa).
- 基于PCL的TPE的生物降解率 (47.6%) 比基于PTMEG的TPE (24.3%) 高得多.
结论:
- 可生物降解的PCL聚合物是高性能TPE的有效软片段.
- 基于PCL的TPE提供了比聚乙烯对应物更好的机械性能和更好的生物降解性.
- 这种方法为开发先进的可生物降解弹性体提供了一个可持续的途径.
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