光活性 ZnS 复合多孔聚合物薄膜的制备:荧光和形态特性。

IF 1.8 4区 化学 Q3 POLYMER SCIENCE
Designed Monomers and Polymers Pub Date : 2021-10-13 eCollection Date: 2021-01-01 DOI:10.1080/15685551.2021.1989151
Guadalupe Del C Pizarro, Wilson Alavia, Rudy Martin-Trasanco, Oscar G Marambio, Julio Sánchez, Diego P Oyarzún
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引用次数: 0

摘要

这项研究介绍了利用呼吸图(BF)法制造光活性多孔聚合物薄膜及其对光刺激反应的特性。这些薄膜包含自组装光活性聚合物和 ZnS 纳米粒子(NPs)。分析了这两种成分对薄膜光学和形态特性的影响。结果表明,薄膜具有六边形有序图案。光活性聚合物是将光致变色成分 1-(2-羟乙基)-3,3-二甲基吲哚啉-6-硝基苯并吡喃(SP)接枝到聚苯乙烯-块状聚甲基丙烯酸(PS-b-PMMA)中制备的。在聚合物溶液中加入 ZnS NPs,并在玻璃基底上采用旋涂法制备薄膜,然后再采用 BF 法进行处理。在引入 ZnS NPs 之前,先获得了空心脚印,以保持六角形薄膜生长的必要条件。因此,在有 ZnS NPs 存在的情况下制备的薄膜的扫描电镜显微照片显示,由于 SP 分子和 NPs 之间的相互作用,孔隙排列有所改变。在紫外荧光下,薄膜的发光特性表现为蓝色和紫色。呼吸图形成及其应用领域取得的进展(如本研究中的例子),将产生适用于化学和材料科学领域的功能性结构。预计这种微结构聚合物薄膜将在光子和光电设备中得到有趣的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Preparation of photoactive ZnS-composite porous polymer films: Fluorescent and morphological properties.

Preparation of photoactive ZnS-composite porous polymer films: Fluorescent and morphological properties.

Preparation of photoactive ZnS-composite porous polymer films: Fluorescent and morphological properties.

Preparation of photoactive ZnS-composite porous polymer films: Fluorescent and morphological properties.

This work describes the use of the breath figure (BF) method for the fabrication of photoactive porous polymer films and the characterization of their responsive to photo stimulus. The films incorporate self-assembled photoactive polymers and ZnS nanoparticles (NPs). The effect of both components on the optical and morphological properties of the films were analyzed. Films with a hexagonally ordered pattern were obtained. The photoactive polymer was prepared by grafting the photochromic component 1-(2-hydroxyethyl)-3,3-dimethylindoline-6-nitrobenzopyran (SP) to polystyrene-block-polymethacrylic acid (PS-b-PMMA). ZnS NPs were incorporated into the polymer solution, and the films were prepared using spin-coating on glass substrates before subjecting them to the BF method. The hollow footprints were obtained before introducing the ZnS NPs in order to maintain the necessary conditions for hexagonal film growth. Accordingly, the SEM micrographs of the films prepared in the presence of ZnS NPs displayed a loss in the pore arrangement as a consequence of the interaction between SP moiety and NPs. The light-emitting properties of films were characterized by blue and violet colors when exposed to UV light under fluorescence. Progress in the field of breath-figure formation and its application, such as exemplified in this work, leads to functional structures with suitable applications in chemistry and materials science. It is expected that such microstructured polymeric films will have interesting applications in photonic and optoelectronic devices.

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来源期刊
Designed Monomers and Polymers
Designed Monomers and Polymers 化学-高分子科学
CiteScore
3.30
自引率
0.00%
发文量
28
审稿时长
2.1 months
期刊介绍: Designed Monomers and Polymers ( DMP) publishes prompt peer-reviewed papers and short topical reviews on all areas of macromolecular design and applications. Emphasis is placed on the preparations of new monomers, including characterization and applications. Experiments should be presented in sufficient detail (including specific observations, precautionary notes, use of new materials, techniques, and their possible problems) that they could be reproduced by any researcher wishing to repeat the work. The journal also includes macromolecular design of polymeric materials (such as polymeric biomaterials, biomedical polymers, etc.) with medical applications. DMP provides an interface between organic and polymer chemistries and aims to bridge the gap between monomer synthesis and the design of new polymers. Submssions are invited in the areas including, but not limited to: -macromolecular science, initiators, macroinitiators for macromolecular design -kinetics, mechanism and modelling aspects of polymerization -new methods of synthesis of known monomers -new monomers (must show evidence for polymerization, e.g. polycondensation, sequential combination, oxidative coupling, radiation, plasma polymerization) -functional prepolymers of various architectures such as hyperbranched polymers, telechelic polymers, macromonomers, or dendrimers -new polymeric materials with biomedical applications
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