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Macrocyclic polymers: Synthesis, purification, properties and applications
Progress in Polymer Science ( IF 27.1 ) Pub Date : 2022-09-06 , DOI: 10.1016/j.progpolymsci.2022.101606
Jordan Ochs, Carlo Andrea Pagnacco, Fabienne Barroso-Bujans

Cyclic polymers present a topology that differ significantly from their linear counterparts due to their circular structure and therefore, the lack of chain ends. These simple characteristics are responsible for important unique properties (e.g. lower intrinsic and melt viscosity, lower hydrodynamic volumes, slower degradation profiles, increased blood circulation times and more selective bioaccumulation) thanks to which the cyclic polymers are today a vanguard in macromolecular chemistry. However, the preparation of cyclic polymers with high topological purity and in large quantities is challenging, therefore demanding the continuous development of synthetic methods. Advances in organic chemistry and the development of new catalytic systems has allowed the field of cyclic polymers to expand enormously in recent decades. In this review, ring closure and ring expansion polymerization strategies are described along the milestones that have characterized the evolution of cyclic (bio)polymer chemistry over the years. We also focus on very recent advances and state-of-the-art techniques for the synthesis and purification of cyclic polymers and provide an overview of properties and applications of cyclic polymers in different fields.



中文翻译:

大环聚合物:合成、纯化、性能和应用

环状聚合物呈现出与其线性对应物显着不同的拓扑结构,因为它们具有环状结构,因此没有链端。这些简单的特性导致了重要的独特特性(例如,较低的特性粘度和熔体粘度、较低的流体动力学体积、较慢的降解曲线、增加的血液循环时间和更具选择性的生物积累),因此环状聚合物是当今大分子化学的先锋。然而,制备具有高拓扑纯度和大量的环状聚合物具有挑战性,因此需要不断发展合成方法。近几十年来,有机化学的进步和新催化体系的发展使得环状聚合物领域得到了极大的扩展。在本次审查中,环闭合和扩环聚合策略描述了多年来表征环状(生物)聚合物化学发展的里程碑。我们还关注环状聚合物合成和纯化的最新进展和最先进的技术,并概述环状聚合物在不同领域的特性和应用。

更新日期:2022-09-06
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