含氨甲烯聚合物刷具有可调节的水友性:在水溶液中的合成和特性
Denis Kamorin1, Alexander Simagin1, Oleg Kazantsev1
1Research Laboratory "New Polymeric Materials", Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24 Minin Street, 603950 Nizhny Novgorod, Russia.
Polymers
|May 14, 2025
概括
通过可逆添加-碎片化链转移 (RAFT) 聚合,合成了新型热感应的阴离子分子刷. 这些聚合物在药物输送应用中表现出可调节的特性.
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
背景情况:
- 热敏聚合物为先进的应用提供可调节的特性.
- 阴离子聚合物对于药物输送和抗菌应用至关重要.
- 分子刷为量身定制的材料特性提供了独特的架构.
研究的目的:
- 为了合成新型热响应的阴离子分子刷子.
- 为了研究刷子组成对溶解度,界面张力和聚合的影响.
- 探索这些刷的潜力作为药物输送的菌根纳米载体.
主要方法:
- 可逆添加-碎片化链转移 (RAFT) 聚合被用于受控合成.
- 同聚合物是从甲氧化 (((乙烯基醇)) 甲酸盐,氧化 (((乙烯基醇)) 甲酸盐和N-甲氧化 (N-methacryloylaminopropyl-N,N-dimethyl-N-propylammonium bromide) 合成的.
- 特性包括分子重量,分散性,溶解性,界面张力和聚合行为的分析.
主要成果:
- 实现了高产量 (>80%) 和受控的聚合 (分散度 ≤1.3).
- 观察到可调节的低临界溶液温度 (LCST) 行为 (17-68 °C),可通过组合控制.
- 显著降低了水-油界面张力和低临界菌度 (CMCs: 3-10 mg/L).
- 对含有较高疏水性共子含量的疏水性化合物增加溶解能力.
结论:
- 成功合成了具有可调节的水友性-水害性质和抗菌潜力的新型热响应性阴离子分子刷.
- 这些聚合物在水溶液中表现出优异的界面活性和可调整的聚合行为.
- 这些材料显示出作为可控药物输送应用的状纳米载体的前景.
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