Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (7): 1634.

• Preface • Previous Articles     Next Articles

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.

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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