From shape and color memory PCL network to access high security anti-counterfeit material

被引：20

作者：

Du, Lan ^{[1
]}

Dai, Jiang ^{[1
]}

Xu, Zhi-Yuan ^{[1
]}

Yang, Ke-Ke ^{[1
]}

Wang, Yu-Zhong ^{[1
]}

机构：

[1] Sichuan Univ, Coll Chem, Collaborat Innovat Ctr Ecofriendly & Fire Safety, State Key Lab Polymer Mat Engn,Natl Engn Lab Ecof, Chengdu 610064, Sichuan, Peoples R China

来源：

POLYMER | 2019年 / 172卷

基金：

中国国家自然科学基金;

关键词：

Shape memory; Color memory; Anti-counterfeit label; POLYURETHANE; COMPOSITES; POLYMERS; STORAGE; BONDS;

D O I：

10.1016/j.polymer.2019.03.054

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Shape memory polymers have been widely applied in actuators and space deployable materials due to the shape-change feature under external stimuli. Actually, it will show greater potential in smart materials if the shape memory technique creatively combined with other functions. Herein, a shape and color memory material was prepared by incorporating a photochromic molecule spiropyran into the shape memory poly(epsilon-caprolactone) network. Integrating shape memory effect with color variance in this network, we firstly mimic a blooming rose with color change as it warms through specific assembly and procedures. Assisted with dynamic bond exchange of urethane and ester linkages, surface patterning, and molding technology, a series of application models can execute SME accompanied with color change were demonstrated, including high security information storage material, anti-counterfeit label and encryption label.

引用

页码：52 / 57

页数：6