一种基于的甘胺氨酸环氧树脂的合成,加工和性能
Amy Honnig Bassett1, Emre Kinaci1, Giuseppe R Palmese1
1Department of Chemical Engineering, Advanced Materials and Manufacturing Institute (AMMI), Rowan University, 201 Mullica Hill Rd., Glassboro, New Jersey 08028, United States.
ACS omega
|December 1, 2025
概括
这项研究合成了 furan diepoxy (FDE) 和其α-chlorohydrin衍生物. 由于增强的交联,α-水素FDE表现出优越的热力学性能,包括更高的储存模量和玻璃过渡温度.
科学领域:
- 聚合物化学 聚合物化学
- 有机合成 有机合成
- 材料科学 材料科学 材料科学
背景情况:
- 环氧树脂是具有可调节性质的多功能聚合物.
- 含的环氧体为网络形成提供了独特的反应性.
- 控制合成以产生特定的环氧结构对于性能优化至关重要.
研究的目的:
- 合成和表征二氧化物 (FDE) 和其α-chlorohydrin衍生物.
- 研究固化FDE和α-水素FDE的网络形成和热力学特性.
- 为这些新环氧系统建立结构-属性关系.
主要方法:
- 使用furfuryl amin和epichlorohydrin合成FDE和α-chlorohydrin FDE.
- 通过凝透色谱 (GPC) 和富里埃变换红外光谱 (FTIR) 进行表征.
- 使用差分扫描热量计 (DSC),FTIR,H和CNMR和动态机械分析 (DMA) 的治愈研究.
主要成果:
- 在合成过程中同时形成FDE和α-水素FDE,而α-水素FDE成为主导的.
- 与FDE相比,α-chlorohydrin FDE表现出更高的储存模量 (4.4 GPa vs. 2.9 GPa) 和玻璃过渡温度 (129 °C vs. 80 °C).
- 由于环开放形成的额外的交叉链接,α-水素FDE的性能得到了改善.
结论:
- 合成产生FDE和α-水素FDE的混合物,反应时间影响产品的分布.
- 与FDE相比,α-水素FDE的热力学性能显著提高.
- furan 部分在交叉连接中的参与是改善材料性能的关键.
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