Reversible Photochromic Nanofiber Membrane Containing Comb‐Like Poly(octadecyl acrylate) Nanoparticles Used for Ultraviolet Intensity Indicator,Macromolecular Materials and Engineering

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Reversible Photochromic Nanofiber Membrane Containing Comb‐Like Poly(octadecyl acrylate) Nanoparticles Used for Ultraviolet Intensity Indicator
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2019-07-17 , DOI: 10.1002/mame.201900299
Zhuang Zhang ₁ , Yu Wang ₁ , Jianping Wang ₁ , Ning Wang ₁ , Na Han ₁ , Xingxiang Zhang ₁ , Wei Li ₁

Affiliation

A novel reversible photo‐responsive polyvinyl alcohol (PVA)/polyethylenimine (PEI) electrospinning nanofiber membrane (NFM), assembled with photochromic nanoparticles containing spiropyran, is herein presented and the water resistance, mechanical properties as well as photochromic properties are investigated systematically. Here, glutaraldehyde, which can undergo a cross‐linking reaction with PVA/PEI, is selected as a cross‐linker to enhance water resistance and mechanical behavior of the NFM. Photochromic polymer nanoparticles are prepared using octadecyl acrylate as polymer matrix monomer through miniemulsion polymerization. Effect factors of the whole preparation process such as the PVA/PEI mass ratio, the amount of emulsifier, and the amount of photochromic nanoparticles added are regulated to obtain the optimal experimental parameters. The surface morphology and microstructure, water resistance, and mechanical properties of NFMs are studied by thermal field emission scanning electron microscopy, static water contact angle tester, and tensile universal testing machine, respectively. Furthermore, UV–vis spectrophotometer is employed to investigate the photochromic performance and fatigue resistance of NFMs. Overall, analyses reveal that the reversible photo‐responsive electrospinning NFM exhibit excellent photoresponsivity, photoreversibility, and fatigue resistance upon UV irradiation, thus showing promising application in the field of ultraviolet intensity indicator.

中文翻译：

含梳状聚（丙烯酸十八烷基酯）纳米粒子的可逆光致变色纳米纤维膜，用于紫外线强度指示剂

本文介绍了一种新型的可逆光响应聚乙烯醇（PVA）/聚乙烯亚胺（PEI）电纺丝纳米纤维膜（NFM），该膜与含有螺吡喃的光致变色纳米粒子组装在一起，并系统地研究了其耐水性，机械性能以及光致变色性能。在这里，可以与PVA / PEI发生交联反应的戊二醛被选作交联剂，以增强NFM的耐水性和机械性能。使用丙烯酸十八烷基酯作为聚合物基质单体，通过细乳液聚合制备光致变色聚合物纳米颗粒。调节整个制备过程的影响因素，例如PVA / PEI质量比，乳化剂的量和光致变色纳米粒子的添加量，以获得最佳的实验参数。通过热场发射扫描电子显微镜，静态水接触角测试仪和拉伸万能测试机分别研究了NFM的表面形态和微观结构，耐水性和力学性能。此外，紫外可见分光光度计用于研究NFM的光致变色性能和抗疲劳性。总体而言，分析表明，可逆光响应静电纺丝NFM在紫外线照射下表现出出色的光响应性，光可逆性和抗疲劳性，因此在紫外线强度指示剂领域显示出了广阔的应用前景。和拉伸万能试验机。此外，紫外可见分光光度计用于研究NFM的光致变色性能和抗疲劳性。总体而言，分析表明，可逆光响应静电纺丝NFM在紫外线照射下表现出出色的光响应性，光可逆性和抗疲劳性，因此在紫外线强度指示剂领域显示出了广阔的应用前景。和拉伸万能试验机。此外，紫外可见分光光度计用于研究NFM的光致变色性能和抗疲劳性。总体而言，分析表明，可逆光响应静电纺丝NFM在紫外线照射下表现出出色的光响应性，光可逆性和抗疲劳性，因此在紫外线强度指示剂领域显示出了广阔的应用前景。

更新日期：2019-11-08

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