Deformation behavior of polymeric colloidal photonic crystals induced by UV irradiation

The deformation behavior of polymeric colloidal photonic crystals (CPCs) during UV irradiation was investigated. A CPC grown from a polystyrene (PS) colloidal suspension was prepared and exposed to UV light. The UV irradiation resulted in photochemical reactions that induced morphological changes in...

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Bibliographic Details
Published in:Macromolecular research 2013, 21(12), , pp.1366-1371
Main Authors: Kim, Mun Ho, Byun, Doo-Jin, Song, Si-Yong, Shin, Sei-Moon, Kwak, Su Kyoung, Choi, Kil-Yeong
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Nanochemistry
Nanotechnology
Physical Chemistry
Polymer Sciences
Soft and Granular Matter
고분자공학
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Summary:The deformation behavior of polymeric colloidal photonic crystals (CPCs) during UV irradiation was investigated. A CPC grown from a polystyrene (PS) colloidal suspension was prepared and exposed to UV light. The UV irradiation resulted in photochemical reactions that induced morphological changes in the surfaces of CPC, including deformations in the sizes, shapes, and packing structures of the PS particles. The crystal morphology evolution resulting from UV irradiation differed significantly from the photoaging behavior observed during exposure to a light source that mimicked natural sunlight. The structural deformations destroyed the optical properties (by deteriorating the photonic bandgap). The UV irradiation induced photooxidation processes that altered the composition of the polymer material surface.
ISSN:1598-5032
2092-7673
DOI:10.1007/s13233-013-1186-3