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聚合物介导控制和迁移效应在旋转-交叉-聚合物混合体向可调节的热传感应用

Georgios N Mathioudakis¹, Georgios Kaldiris¹, Solveig Felton²

¹Foundation for Research and Technology-Hellas (FORTH), Institute of Chemical Engineering Sciences (ICE-HT), 265 04 Patras, Greece.

|December 11, 2025

概括

本研究探讨了不同聚合物如何影响旋转交叉 (SCO) 材料. 将SCO复合物纳入像PLA,PS和PSF这样的聚合物中,可以调整它们的特性,为先进的功能材料提供了一条道路.

科学领域:

材料科学材料科学材料科学
超分子化学超分子化学
聚合物科学聚合物科学

背景情况:

控制分子材料中的旋转交叉 (SCO) 效应对于传感和记忆设备等应用至关重要.
SCO行为对环境因素敏感,使得可预测的控制具有挑战性.
在聚合物矩阵中嵌入SCO复合物提供了可处理性,但需要理解矩阵-客互动.

研究的目的:

研究一种聚合物媒介策略来调整SCO属性.
检查不同聚合物矩阵 (PLA,PS,PSF) 对特定Fe (II) SCO复合物的影响.
量化SCO粒子在聚合物矩阵中的迁移行为.

主要方法:

在聚乳酸 (PLA),聚烯 (PS) 和聚硫 (PSF) 中加入[Fe(1,10-) 2 ((NCS) 2 SCO复合物.
使用磁感应,光谱和衍射研究进行表征.
在聚合物矩阵内分析SCO粒子迁移.

主要成果:

聚硫 (PSF) 导致更低的过渡温度 (T1/2),更慢的切换动力学,以及由于强烈的矩阵限制而增强的复杂保留.
聚乳酸 (PLA) 和聚乙烯 (PS) 复合材料显示出更明显的过渡和更高的粒子迁移,表明相互作用较弱.
半晶性质的PLA扩大了hysteresis宽度,在PS和PSF矩阵中观察到π-π堆叠相互作用.

结论:

聚合物矩阵通过不同的相互作用和限制效应,积极调节SCO反应.
聚合物的选择显著影响SCO特性,如过渡温度,动力学和歇斯底里.
这项工作展示了一种可扩展的方法,用于开发用于热传感和响应设备的功能性SCO聚合物复合材料.

关键词:

迁移释放释放迁移释放聚合物是一种聚合物.旋转十字路口旋转十字路口热传感材料是一种热传感材料.

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