Shape recovery and reprocessing of polyurethane networks crosslinked via host-guest inclusion complexation of adamantane with β-cyclodextrin

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED Reactive & Functional Polymers Pub Date : 2024-06-23 DOI:10.1016/j.reactfunctpolym.2024.105998

Jie Xu, Huaming Wang, Tao Zhang, Lei Li, Sixun Zheng

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Abstract

In this contribution, we reported a novel strategy to crosslink polyurethane (PU) via host-guest inclusion complexations. First, a linear PU with adamantane (Ad) as side groups was synthesized with a 1,3-diol bearing adamantane as the chain extender. Thereafter, this linear PU was crosslinked with a poly(β-cyclodextrin) through host-guest inclusion complexations to afford PU-Ad-CD networks. In comparison with the linear PU, the PU-Ad-CD networks exhibited improved mechanical properties with the Young's modulus of 43.21 MPa, which was more than eight times as that of the linear PU. The formation of inclusion complexes enabled the PU-Ad-CD networks to display reprocessing properties. In addition, the shape memory properties of the networks featured the reconfigurability of original shape with the aid of the exchange of the host-guest inclusion complexations. This study provides new insights into the development of high-performance PU materials.

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通过金刚烷与β-环糊精的主客体包合复合物交联的聚氨酯网络的形状恢复和再加工

在这篇论文中，我们报告了一种通过主-客体包合物交联聚氨酯（PU）的新策略。首先，我们以含金刚烷的 1,3 二醇为扩链剂，合成了以金刚烷（Ad）为侧基的线性聚氨酯。然后，这种线性聚氨酯通过主-客包合物与聚（β-环糊精）交联，形成 PU-Ad-CD 网络。与线性聚氨酯相比，PU-Ad-CD 网络具有更好的机械性能，其杨氏模量为 43.21 兆帕，是线性聚氨酯的八倍多。包合物的形成使 PU-Ad-CD 网络具有再加工特性。此外，借助主客体包合物的交换，网络的形状记忆特性还具有原始形状的可重构性。这项研究为高性能聚氨酯材料的开发提供了新的见解。

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来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.