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论文类型：期刊论文

发表时间：2013-12-01

发表刊物：DYES AND PIGMENTS

收录刊物：SCIE、EI、Scopus

卷号：99

期号：3

页面范围：1022-1028

ISSN号：0143-7208

关键字：Polymethylmethacrylate; Methacrylic acid; Photonic crystal film; Structural color; Heat-resistant; Glass transition temperature

摘要：Weak heat resistance of polymethylmethacrylate (PMMA) photonic crystal films has been the major challenge for its applications in displays or paints. This paper presents heat-resistant PMMA photonic crystal films with a bright structural color that are produced by using a simple preparation strategy. In this strategy, the heat resistance was controlled and remarkably improved by introducing methacrylic acid as comonomer together with methyl methacrylate. The mechanism of improving heat resistance was characterized by using scanning electron microscopy and differential scanning calorimetry. Three-dimensional ordered structures are produced, directly forming photonic crystal films that are highly heat-resistant and have a bright structural color. These two properties are significant for applications in displays or paints. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.