Stimuli-responsive cellulose modified by epoxy-functionalized polymer nanoparticles with photochromic and solvatochromic properties

被引：64

作者：

Abdollahi, Amin ^{[1
]}

Rad, Jaber Keyvan ^{[1
]}

Mahdavian, Ali Reza ^{[1
]}

机构：

[1] Iran Polymer & Petrochem Inst, Dept Polymer Sci, POB 14965-115, Tehran, Iran

来源：

CARBOHYDRATE POLYMERS | 2016年 / 150卷

关键词：

Stimuli-responsive; Photochromic; Solvatochromic; Cellulose; Spiropyran; Nanoparticle; FLUORESCENT NANOPARTICLES; SPIROOXAZINE DYE; SPIROPYRAN; MODULATION; COPOLYMERS; LATEX; SIZE;

D O I：

10.1016/j.carbpol.2016.05.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Photoresponsive papers are among the fast and simple tools for detection of polarity by solvatochromic and photochromic behaviors upon UV irradiation. Here, a new, green and facile modification strategy was employed to prepare novel stimuli-responsive cellulose materials containing spiropyran by mixing microcrystalline cellulose (MCC), as a model compound, with epoxy-functionalized photochromic latex. FTIR analysis, thermal and thermo-mechanical properties were used to confirm the microstructral properties. Crystallographic analysis revealed a decrease in crystallinity of cellulose matrix and approved the incorporation of photochromic copolymer. Then stimuli-responsive papers were prepared by using pulp paper as the cellulosic matrix and their smart characteristics were studied under UV irradiation while dried or immersed into some polar and non-polar solvents. Different color changes were observed and investigated by solid-state UV-vis spectroscopy. These significant results were attributed to the efficient chemical modification and confirmed by SEM, EDX and nitrogen mapping analyses. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：131 / 138

页数：8

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