网络结构和二硫键浓度对 Vitrimer 性能的影响分析
Analysis of the Effect of Network Structure and Disulfide Concentration on Vitrimer Properties.
作者信息
Azcune Itxaso, Elorza Edurne, Ruiz de Luzuriaga Alaitz, Huegun Arrate, Rekondo Alaitz, Grande Hans-Jürgen
机构信息
CIDETEC, Basque Research and Technology Alliance (BRTA), Paseo Miramón 196, 20014 Donostia-San Sebastian, Spain.
Advanced Polymers and Materials-Physics, Chemistry and Technology Department, University of the Basque Country (UPV/EHU), Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain.
出版信息
Polymers (Basel). 2023 Oct 17;15(20):4123. doi: 10.3390/polym15204123.
A set of five vitrimers with glass transition temperatures in the range of 80-90 °C were designed to assess the effect of the network structure and disulfide concentration on their dynamic and mechanical properties, and to find the best performing system overall compared to the commercial Araldite LY1564/Aradur 3486 commercial thermoset system. Vitrimer networks were prepared by incorporating mono- and bifunctional epoxy reactive diluents and an amine chain extender into the Araldite LY1564/4-aminophenyldisulfide system.
设计了一组玻璃化转变温度在80 - 90°C范围内的五种热致液晶聚合物，以评估网络结构和二硫键浓度对其动态和机械性能的影响，并与商业用Araldite LY1564/Aradur 3486商业热固性体系相比，找出整体性能最佳的体系。通过将单官能和双官能环氧活性稀释剂以及胺类扩链剂加入到Araldite LY1564/4 - 氨基苯基二硫体系中来制备热致液晶聚合物网络。
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