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Pluronic P123对交联聚氨/聚乳生物复合物的形状记忆的影响

Youhua Chen¹, Xiaofeng Song², Ying Wang¹

¹School of Chemical Engineering, Changchun University of Technology, China.

International journal of biological macromolecules

|December 28, 2023

概括

这项研究引入了一种新的形状记忆复合物,该复合物使用聚氨 (PU),聚乳酸 (PLLA) 和Pluronic P123. 复合材料表现出出色的形状记忆特性和生物相容性,使其适合生物医学应用.

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
生物医学工程生物医学工程

背景情况:

聚氨 (PU) 和聚乳酸 (PLLA) 是由于其生物相容性和可降解性而成为关键的形状记忆聚合物 (SMP).
Pluronic P123对SMP性能的影响,特别是它的形状记忆 (SM) 功能,仍然在很大程度上未被探索.

研究的目的:

为了研究Pluronic P123对PU/PLLA复合物的形状记忆性能的影响.
为潜在的生物医学应用开发一种对热水反应敏捷的SM复合物.

主要方法:

合成可溶性交联聚氨 (PU) 作为切换阶段.
结合PU,PLLA和Pluronic P123来创建一个新的SM复合材料.
通过测量水接触角来评估水友性.
在热水中评估形状记忆特性,包括形状固定性 (Rf) 和形状恢复 (Rr).

主要成果:

PU/PLLA/P123复合物表现出增强的SM行为,在55°C的水中Rf为94.4%和Rr为98%.
观察到只有10秒的快速形状恢复时间.
复合材料显示水接触角度显著减少,表明水友性增加.
PU和P123作为切换组协同发挥作用,提高了SM的性能.

结论:

Pluronic P123显著提高了PU/PLLA复合材料的形状记忆性能.
开发的PU/PLLA/P123复合材料提供了机械性能,可降解性和生物相容性的有希望的平衡.
这种材料提供了一个可行的替代方案,用于生物医学应用的水热响应的SM生物复合材料.

关键词:

交叉连接的PUPU可以连接.在P123中使用P123.这就是PLLALA的意思.形状记忆中的形状记忆.

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