Tunable cross-linked copolymer networks for improvement of physical performance,Journal of Polymer Science

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Tunable cross-linked copolymer networks for improvement of physical performance
Journal of Polymer Science ( IF 3.9 ) Pub Date : 2021-08-11 , DOI: 10.1002/pol.20210374
Eun Seon Kim _{1,

2} , Tai Young Park ₁ , Kyoung Hwan Choi ₁ , Woo Jin Choi ₂ , Dong Hack Suh ₁

Affiliation

The ability to tune the physical properties of polymeric materials through the different compositions in copolymer networks is suitable for the strategy of materials accompanied by combined high mechanical strength and stretchability simultaneously. Here, we developed a practical and straightforward strategy of a copolymer network structure via controlling the compositions of the acrylic-based urethane copolymers of diurethane acrylate (DUA) and diurethane cyclic acrylate (DUCA) with hydrogen-bonds through photo-polymerization. The copolymer networks led to the development of a physically cross-linked structure between the amide groups of DUA and/or DUCA and the hydroxyl groups of pentaerythritol ethoxylate (PEEL) by hydrogen-bonds. Based on the rheological analysis, the composition of the copolymer networks had a significant effect on the control of physical properties and development of cross-linked structure and thus led to the tunable comprehensive properties including high elastic modulus, high chain mobility and high recovery performance with a higher proportion of DUCA in the copolymer networks. Consequently, the tunable copolymer networks based on the developed physically cross-linked structure can improve the elastic properties, recovery performance, and healing ability simultaneously, providing significant progress in the fields of coating and adhesive.

中文翻译：

用于改善物理性能的可调交联共聚物网络

通过共聚物网络中的不同组成来调节聚合物材料物理性能的能力适用于同时具有高机械强度和拉伸性的材料策略。在这里，我们通过光聚合控制具有氢键的二氨基甲酸酯丙烯酸酯（DUA）和二氨基甲酸酯环状丙烯酸酯（DUCA）的丙烯酸基氨基甲酸酯共聚物的组成，开发了一种实用且直接的共聚物网络结构策略。共聚物网络导致通过氢键在 DUA 和/或 DUCA 的酰胺基团与季戊四醇乙氧基化物 (PEEL) 的羟基之间形成物理交联结构。根据流变学分析，共聚物网络的组成对物理性质的控制和交联结构的发展有显着影响，从而导致了包括高弹性模量、高链迁移率和高恢复性能在内的可调综合性能，其中 DUCA 的比例较高。共聚物网络。因此，基于开发的物理交联结构的可调共聚物网络可以同时提高弹性性能、恢复性能和愈合能力，在涂料和粘合剂领域取得重大进展。在共聚物网络中具有更高比例的 DUCA 具有高链迁移率和高恢复性能。因此，基于开发的物理交联结构的可调共聚物网络可以同时提高弹性性能、恢复性能和愈合能力，在涂料和粘合剂领域取得重大进展。在共聚物网络中具有更高比例的 DUCA 具有高链迁移率和高恢复性能。因此，基于开发的物理交联结构的可调共聚物网络可以同时提高弹性性能、恢复性能和愈合能力，在涂料和粘合剂领域取得重大进展。

更新日期：2021-09-15

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