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A self-crosslinking thermosetting monomer with both epoxy and anhydride groups derived from tung oil fatty acids: Synthesis and properties
- Kyn Huang, Zengshe Liu, Jinwen Zhang, Shouhai Li, Mei Li, Jianling Xia, Yonghong Zhou
- European polymer journal 2015 v.70 pp. 45-54
- bubbles, curing agents, cycloaddition reactions, epoxides, fatty acids, maleic anhydrides, mechanical properties, mixing, resins, storage quality, thermal properties, tung oil
- A self-crosslinking compound with epoxy groups and anhydride groups (GEMA) was successfully synthesized from tung oil fatty acid by reacting with maleic anhydride via the Diels-Alder reaction. GEMA has very good storage stability and could be cured with trace amounts of tertiary amine. This advantage avoided the non-uniformity, bubbles and insolubility during the mixing procedure of the epoxy resins and curing agents. Compared to commercial Bisphenol A epoxy resins, GEMA has relatively lower mechanical properties and thermal properties. However, in view of its renewable properties, GEMA still is a very promising bio-based epoxy which may replace Bisphenol A epoxy resins in some applications.