Macroporous morphology of the titania films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol): Effects of molecular weight and dipping temperature

被引：36

作者：

Kajihara, K ^{[1
]}

Yao, T ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Energy Sci, Dept Fundamental Energy Sci, Sakyo Ku, Kyoto 6068501, Japan

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2000年 / 19卷 / 1-3期

关键词：

macroporous titania film; phase separation; molecular weight; dipping temperature; sol-gel dip-coating method;

D O I：

10.1023/A:1008736305330

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Macroporous morphology has been examined for the titania (TiO2) films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol) (PEG) under the variations of molecular weight of PEG and dipping temperature. The macroporous morphology is observed only within the limited range of molecular weight because the compatibility between PEG and the solvent mixture is quite sensitive to the molecular weight. The macroscopic domain formation is enhanced at higher withdrawal speed when the dipping temperature is raised, suggesting that the fluidity reduction and the phase separation are more accelerated than the polycondensation due to the enhanced solvent evaporation.

引用

页码：219 / 222

页数：4

共 15 条

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[2]

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[3]

KAGEMOTO A, 1971, MAKROMOLEKUL CHEM, V150, P255

[4]

Kajihara K, 1998, J AM CERAM SOC, V81, P2670, DOI 10.1111/j.1151-2916.1998.tb02675.x