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Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (7): 1464.

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Preparation of Honeycomb Pattern Organic-inorganic Hybrid Films by Breath Figure Method

SHEN Yan-Ming*, WU Jing, LU Xin, TANG Yang-Jun, LIU Dan, LI Chang-Long, LI Tian-Shu   

  1. Department of Chemical Engineering, Shenyang Institute of Chemical Technology, Shenyang 110142, China
  • Received:2008-10-10 Online:2009-07-10 Published:2009-07-10
  • Contact: SHEN Yan-Ming. E-mail: sym6821@sina.com.cn

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Abstract:

PS/SiO2 organic-inorganic hybrid films with honeycomb patterns were prepared by Breath Figure method using organic solution of polystyrene and TEOS as casting solution. The prepared films were characterized by SEM, EDS, FTIR and XRD. Some effects such as PS concentration, PS/TEOS mass ratio, PS structure and solvent type were investigated. The results show that the perfect Honeycomb pattern films without defects within area of 0.8 cm2 can be obtained at the PS concentration ranges from 20 mg/mL to 50 mg/mL and PS/TEOS mass ratio less than 2. The films cast from the chloroform solution of dicarboxyl terminated PS were more perfect than those cast from the chloroform solution of monocarboxyl terminated PS. The perfect Honeycomb structure films could be obtained with both chloroform and benzene as solvents, but the pore diameter of films cast from benzene solution of PS was larger than that of films cast from chloroform solution of PS. Partial hydrolysis of TEOS occurred during the precursor was cast onto the substrate and both the partial hydrolyzed TEOS and complete hydrolyzed product SiO2 presented in the resulting membrane. Silicon and oxygen distributed uniformly in the resulting membrane.

Key words: Breath figure method; Water-assisted method; Ordered porous film; Honeycomb pattern; Orga-nic-inorganic film

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