在pH控制的介质中交叉连接的Adenanthera pavonina L. Galactomannan的介电反应
Antônia Millena de Oliveira Lima1, Fernando Mendes2,3,4,5,6, Lincoln Almeida Cavalcante1
1Laboratório de Pesquisa, Instituto Federal do Maranhão, Campus Imperatriz, Imperatriz 65906-335, Brazil.
Polymers
|April 12, 2025
概括
这项研究探讨了来自Adenanthera pavonina L.的交联银河曼南与甲的交联. 交叉连接降低了水溶性和改变了电性质,影响了介电常数.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物材料是一种生物材料.
背景情况:
- 一种多糖体的银河是一种有前途的生物材料,可用于各种应用.
- 了解化学修饰对银河属性的影响对于材料开发至关重要.
- 阿登拉帕沃尼纳 (Adenanthera pavonina L.) 是新型银河的潜在来源.
研究的目的:
- 调查来自Adenanthera pavonina L. 的银河的产生和交叉链接.
- 分析交联的银河系曼南膜和海绵的结构性,热性,膨胀性和电性.
- 评估pH值对交联过程和材料特性的影响.
主要方法:
- 从Adenanthera pavonina L. L. 中提取的 galaktomannan 提取物
- 在pH 3-7时与甲 (0.2mol/L) 进行交叉连接.
- 通过缓慢的溶剂蒸发来制备薄膜和海绵.
- 使用FTIR,XRD,TGA,胀测试和阻抗光谱进行表征.
主要成果:
- 交叉连接并没有改变无形性质,但影响了分子相互作用和链的移动性.
- 交叉连接的样本显示,与原始银河系曼南相比,水溶性降低.
- 交联样本中偏振和对齐的减少导致了较低的介电常数.
结论:
- 甲交叉连接修改了银河的特性,增强了稳定性并改变了电气行为.
- 在交叉连接过程中,pH会影响分子间相互作用和链动态.
- 该研究提供了针对特定材料应用量身定制银河的见解.
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