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Abstract：
The low percentage of recyclability of the polymeric materials obtained by olefin transition metal (TM) polymerization catalysis has increased the interest in their substitution with more eco-friendly materials with reliable physical and mechanical properties. Among the variety of known biodegradable polymers, linear aliphatic polyesters produced by ring-opening polymerization (ROP) of cyclic esters occupy a prominent position. The polymer properties are highly dependent on the macromolecule microstructure, and the control of stereoselectivity is necessary for providing materials with precise and finely tuned properties. In this review, we aim to outline the main synthetic routes, the physical properties and also the applications of three commercially available biodegradable materials: Polylactic acid (PLA), Poly(Lactic-co-Glycolic Acid) (PLGA), and Poly(3-hydroxybutyrate) (P3HB), all of three easily accessible via ROP. In this framework, understanding the origin of enantioselectivity and the factors that determine it is then crucial for the development of materials with suitable thermal and mechanical properties.
摘要：
通过烯烃过渡金属（TM）聚合催化获得的聚合物材料的低可回收性百分比增加了用具有可靠物理和机械性能的更环保材料代替它们的兴趣。在各种已知的生物可降解聚合物中，通过环状酯的开环聚合(ROP)生产的线性脂肪族聚酯占据突出的位置。聚合物的性能高度依赖于大分子的微观结构,并且立体选择性的控制对于提供具有精确和精细调节的材料是必要的。在这次审查中,我们的目标是概述主要的合成路线，三种市售可生物降解材料的物理性质和应用：聚乳酸（PLA），聚（乳酸-共-乙醇酸）（PLGA），和聚（3-羟基丁酸）（P3HB），所有三个都可以通过ROP轻松访问。在这个框架中,了解对映选择性的起源和决定它的因素，然后是至关重要的材料具有合适的热和机械性能的发展。
