高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (7): 1634.

• 研究论文 • 上一篇    下一篇

聚苯乙烯光子晶体薄膜的光化学行为

张玉琦,郝欣,魏清渤,杨华,王俏,宋延卫   

  1. 延安大学化学与化工学院, 延安 716000
  • 收稿日期:2010-09-02 修回日期:2010-11-22 出版日期:2011-07-10 发布日期:2011-06-02
  • 通讯作者: 张玉琦 E-mail:yqzhang@iccas.ac.cn
  • 基金资助:

     陕西省教育厅专项研究计划(批准号: 11JK0587)资助.

Photochemical Behavior of Polystyrene Photonic Crystals Film

ZHANG Yu-Qi*, HAO Xin, WEI Qing-Bo, YANG Hua, WANG Qiao, SONG Yan-Wei   

  1. College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, China
  • Received:2010-09-02 Revised:2010-11-22 Online:2011-07-10 Published:2011-06-02
  • Contact: ZHANG Yu-Qi E-mail:yqzhang@iccas.ac.cn
  • Supported by:

     陕西省教育厅专项研究计划(批准号: 11JK0587)资助.

摘要: 研究了紫外光照下聚苯乙烯(PS)光子晶体薄膜的表面形貌、光学性质及浸润性变化. 傅立叶红外光谱对紫外光照前后薄膜表面的化学成分进行了表征,结果表明紫外光照后PS微球表面产生亲水性极性基团羰基. 扫描电子显微镜照片表明随着紫外光照时间的延长,PS微球发生收缩、变形甚至熔化. 原位反射和透射光谱表明在光照20 min内,光子晶体薄膜能够保持良好的光学性能,且薄膜由疏水表面转变为亲水表面. 因此,控制光照时间可以制备得到具有良好光学性能的亲水性聚合物光子晶体薄膜,对于光子晶体在特殊环境下的应用具有重要的意义.

关键词: 聚苯乙烯, 光子晶体, 紫外光照, 光化学交联, 浸润性

Abstract: The morphology, optical properties and wettability of polystyrene (PS) photonic crystals (PC) film were studied under UV irradiation. The chemical composition change of the film surface was characterized by FTIR, and the results demonstrated that the hydrophilic carbonyl group formed on the surface of PS microsphere after UV irradiation. Scanning electron microscopic images testified that the PS sphere would contract, deform and melt down companying with longer time of UV irradiation. The in situ reflectance and transmittance spectra indicated that the PS PC film could preserve good optical properties and the wettability turned from hydrophobicity to hydrophilicity under UV light exposure for 20 min. Therefore, the hydrophilic functional polymer PC film with good optical properties can be obtained by controlling the UV irradiation time, which will be of great importance for the application of PC in the special system.

Key words: Polystyrene, Photonic crystals, UV irradiation, Photochemical cross-linking, Wettability

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