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Citation: Huang Zhong-Bing, Gao Ji-Ning, Wang Jing, Tang Fang-Qiong, Yuan Chun-Wei. Preparation of the Modified Polystyrene Microspheres and the Assemble of the Colloid Crystals with High Crystalline Quality[J]. Acta Physico-Chimica Sinica, ;2004, 20(06): 651-655. doi: 10.3866/PKU.WHXB20040620 shu

Preparation of the Modified Polystyrene Microspheres and the Assemble of the Colloid Crystals with High Crystalline Quality

1.
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing　100101; Key Laboratory of Molecular and Biomolecular Electronics of Ministry of Education, Southeast University, Nanjing　210096; School of Science, Dalian Fisheries University, Dalian　116023

Received Date: 30 December 2003
Available Online: 15 June 2004

Polystyrene microspheres with carboxyl of 210 nm were prepared by emulsifier-free polymerization, and characterized by FTIR, TEM, and dynamics light scattering. The results indicate that the PS microspheres modified by methacrylic acid were monodisperse and highly charged. PS colloidal crystal was fabricated quickly from aqueous colloidal solutions by the vertical deposition method at proper temperature and humidity, and its photonic band gap was at 590 nm. The stacking of PS colloid crystal between (111) planes was determined by electron microscopy (TEM and SEM), and the results indicate that the sample of PS colloid crystal is face-centered-cubic (fcc) structure.
- Emulsifier-free polymerization;Colloidal crystals;Vertical deposition method;Monodisperse microspheres
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