一种新的无溶剂途径,用于诱导四分化素衍生的高分子量聚合物
Preety Saini1, Weijue Gao1, Ahmed Soliman2
1Biorefining Research Institute and Chemical Engineering Department, Lakehead University, Thunder Bay, ON P7B 3E1, Canada.
International journal of biological macromolecules
|August 18, 2023
概括
这项研究合成了从 kraft 素和乙烯基化物中合成的新型阴离子聚合物,与 imidazole 单体功能化. 与聚合物2b相比,具有甲基组的聚合物2a作为花剂表现出更高的性能,这表明了可持续水处理应用的潜力.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 可持续化学 可持续化学
背景情况:
- 实力 (KL) 是一个丰富的,可再生的生物质资源,具有化学修饰的潜力.
- 移植聚合提供了一种途径,可以从素中制造功能性聚合物.
- 阴离子聚合物对于诸如水处理中的花化等应用至关重要.
研究的目的:
- 通过将基于伊米达的单体接种到 kraft 上来合成新型阴阳性聚合物.
- 研究单体侧链长度对聚合物的性能和性能的影响.
- 评估这些新型聚合物的潜力,作为考林悬浮物的花剂.
主要方法:
- 实力素首先与乙烯基化物 (VBC) 聚合,形成一个中间聚合物 (KL-poly(VBC)).
- 该中间聚合物进一步与1-甲基胺醇 (MIM) 或1-n-丁胺醇 (BIM) 发生反应,分别产生KL-多 (VBC-MIM) (2a) 和KL-多 (VBC-BIM) (2b).
- 聚合物表征包括分子量确定,电荷密度,溶解度,接触角度分析和元素分析. 在考林悬浮剂上测试了花性能.
主要成果:
- 与聚合物2b (来自BIM) 相比,聚合物2a (来自MIM) 的分子量,电荷密度和可溶性较高,这是由于降低了固体阻碍.
- 接触角度分析表明,聚合物2a的水友性更大.
- 聚合物2a的花性能与商业化聚烯胺 (CPAM) 相当,尽管其分子量较小.
结论:
- 将伊米达单体移植到卡夫特上是一种生产功能性阴阳性聚合物的可行方法.
- 甲基利米达衍生聚合物 (2a) 显示了增强的特性和优越的花效率,而不是n-丁利米达衍生聚合物 (2b).
- 这些新型的基于素的化聚合物为化应用提供了一个有希望的,可持续的替代品.
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