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New insights into the properties of alkali-degradable thermosets based on epoxidized soy oil and plant-derived dicarboxylic acids
Polymer ( IF 4.1 ) Pub Date : 2021-08-30 , DOI: 10.1016/j.polymer.2021.124143
Mariana Allasia 1 , Virginia Gonzalez Estevez 2 , Aldana A. Chesta 2 , Ruben Baccifava 2 , Luis M. Gugliotta 1, 3 , Cecilia I. Alvarez Igarzabal 4 , Matías L. Picchio 1, 2, 4 , Roque J. Minari 1, 3
Affiliation  

Fully green epoxy thermosets were synthesized by a catalyst-free curing process from epoxidized soy oil (ESO) and a series of naturally occurring dicarboxylic acids (DCAs). The effect of increasing the DCAs chain-length on the physicochemical properties of the obtained epoxy polymers is reported. A suite of techniques, including solvent extraction, thermal analysis, rheological and tensile tests, and degradability in alkaline and compost conditions, was used to investigate the behavior of these sustainable epoxy networks. The variation of DCAs chain-length provided tunability over mechanical and thermal properties. The thermosets could be wholly dissolved in alkaline aqueous solutions with minimal environmental impact. Overall, the as-prepared epoxy networks show excellent thermal and mechanical performance and have a great potential to be utilized as fully biobased coatings.



中文翻译:

对基于环氧化豆油和植物衍生二羧酸的碱可降解热固性材料特性的新见解

全绿色环氧热固性树脂是通过无催化剂固化工艺由环氧化豆油 (ESO) 和一系列天然存在的二元羧酸 (DCA) 合成的。报道了增加 DCA 链长对所得环氧聚合物的物理化学性质的影响。一套技术,包括溶剂萃取、热分析、流变和拉伸试验,以及在碱性和堆肥条件下的降解性,被用来研究这些可持续环氧树脂网络的行为。DCA 链长的变化提供了机械和热性能的可调性。热固性材料可以完全溶解在碱性水溶液中,对环境的影响最小。总体,

更新日期:2021-09-06
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