New ultrastiff bio-furan epoxy networks with high Tg: Facile synthesis to excellent properties. (December 2019)

• Record Type: Journal Article
• Authors: Meng, Jingjing; Zeng, Yushun; Chen, Pengfei; Zhang, Jie; Yao, Cheng; Fang, Zheng; Guo, Kai
• Is Part Of: European polymer journal. Volume 121(2019)
• Publication Date: 2019-12
• Subjects: Stiffness -- Biomass -- Epoxy resin -- Flame retardancy -- Thermomechanical properties -- Mechanical properties; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; Polymerization; Polymers; Periodicals; Electronic journals; 547.705
• DOI: 10.1016/j.eurpolymj.2019.109292
• Languages: English
• ISSNs: 0014-3057

Abstract

Graphical abstract: Novel sugar-based bioepoxy resins with the highest Tg (216 °C) were developed, and displayed ultra-high stiffness outperforming the DGEBA analogs. Highlights: Sustainable sugar-derivated DGF/DDS epoxy resins were obtained via clean processes. Novel DGF/33DDS had the ultrastiffness ( E ′ up to 4.02 GPa) from 0 °C to 180 °C. DGF/44DDS networks displayed the highest T g (216 °C) in bioepoxy resins. DGF resins surpassed DGEBA/DDS in thermal stability, fire resistance and hardness. Those merits ensured the use of DGF/DDS in demanding and even cutting-edge areas. Abstract: Novel resins were synthesized from diglycidyl ester of 2, 5-furandicarboxylic acid (DGF) and 3, 3′-diamino diphenylsulfone (33DDS) and 4, 4′-diamino diphenyl-sulfone (44DDS), respectively. The networks possessed ultra high stiffness ( E' = 4.02 GPa) and the highest Tg (216 °C) in biomass-based epoxy resins to date, which allows their potential applications in many cutting-edge areas.