Simultaneous Microscopic Structure Characteristics of Shape-Memory Effects of Thermo-Responsive Poly(vinylidene fluoride-co-hexafluoropropylene) Inverse Opals,ACS Applied Materials & Interfaces

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Simultaneous Microscopic Structure Characteristics of Shape-Memory Effects of Thermo-Responsive Poly(vinylidene fluoride-co-hexafluoropropylene) Inverse Opals
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-01-16 00:00:00 , DOI: 10.1021/acsami.7b17230
Maohua Quan ₁ , Bowen Yang ₂ , Jingxia Wang _{3,

4} , Haifeng Yu ₂ , Xinyu Cao ₅

Affiliation

This paper presents a simultaneous microscopic structure characteristic of shape-memory (SM) poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) inverse opals together with a bulk PVDF-HFP by scanning electron microscopy (SEM). The materials show a thermo-sensitive micro-SM property, accompanied with a reversible and modulated optical property. The introduction of the inverse opal structure into the shape-memory polymer material renders a recognition ability of the microstructure change aroused from complex environmental signals by an optical signal, which can be simultaneously detected by SEM. Furthermore, this feature was applied as a reversible write/erase of fingerprint pattern through the press-stimulus and solvent-induced effect, together with the changes of morphology/optical signal. This micro-SM property can be attributed to the shrink/swell effect of the polymer chain from external stimuli combined with the microscopic structure of inverse opals. It will trigger a promising way toward designing reversible micro-deformed actuators.

中文翻译：

热响应性聚偏二氟乙烯-共-六氟丙烯反蛋白石的形状记忆效应的同时微观结构特征

本文介绍了形状记忆（SM）聚偏二氟乙烯共聚物的同时微观结构特征（六氟丙烯）（PVDF-HFP）反蛋白石和大量PVDF-HFP通过扫描电子显微镜（SEM）进行分析。该材料显示出热敏的micro-SM特性，并具有可逆和调制的光学特性。将反蛋白石结构引入到形状记忆聚合物材料中，可以通过光学信号识别由复杂环境信号引起的微结构变化，该结构可以通过SEM同时检测。此外，该功能还可以通过按压刺激和溶剂诱导的作用，以及形态/光学信号的变化，作为可逆的指纹图案写入/擦除功能。这种微SM性质可以归因于来自外部刺激的聚合物链的收缩/溶胀效应以及反蛋白石的微观结构。

更新日期：2018-01-16

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