作为聚氨泡的有效天然添加剂的α-托科菲罗尔和特洛克斯:一个DFT和实验研究
Dalal K Thbayh1,2,3, Dóra Mentes3, Zsanett R Boros4
1Institute of Chemistry, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary.
Molecules (Basel, Switzerland)
|January 8, 2025
概括
阿尔法托科菲罗尔和特洛洛克斯具有类似的高抗氧化活性,而阿尔法托科菲罗尔的抗氧化能力略高. 这些化合物增强了聚合物的稳定性,并修改了机械性能,使它们成为有效的添加剂.
科学领域:
- 材料科学 材料科学 材料科学
- 计算化学的计算化学
- 食品化学 食品化学
背景情况:
- 阿尔法托科菲罗尔 (维生素E) 是一种重要的食品添加剂,在植物油精炼过程中耗尽,需要重新加入以防止氧化.
- 特罗洛克斯是维生素E的水溶性类似物,经常被用作抗氧化剂标准.
- 这两种化合物都具有显著的生物和抗氧化活性.
研究的目的:
- 通过计算来确定和比较alpha-tocopherol和trolox的抗氧化活性.
- 评估alpha-tocopherol作为增强材料性能和稳定性的聚合物添加剂的有效性.
主要方法:
- 密度函数理论 (DFT) 方法 (M05-2X,M06-2X) 与 6-311++G(2d,2p) 基础集被用于分子几何优化.
- 灵活的聚氨泡被合成了具有不同度的α-托科菲罗尔和NCO指数 (1.0,1.1) 的灵活聚氨泡.
主要成果:
- 计算分析显示,阿尔法-托科菲罗尔和特洛克斯的抗氧化活性几乎相同,而阿尔法-托科菲罗尔的活性略高 (约1. 1.2 kJ/mol) 的时间.
- 将alpha-tocopherol纳入聚氨泡可以降低压力和改变机械特性.
- 阿尔法-托科菲罗尔表现出双重功能,同时作为机械性质修饰剂和抗氧化剂.
结论:
- 阿尔法托科菲罗尔和特洛克斯是具有相似活动的有效抗氧化剂,适合作为聚合物添加剂使用.
- 阿尔法-托科法醇可以增强聚合物材料的耐用性和调整聚氨泡等聚合物材料的机械性能.
- 这项研究突出了阿尔法-托科菲罗尔作为高级材料应用的多功能添加剂的潜力.
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