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Citation: SONG Jian-Hua, ZHANG Jian-Hua, LI Bao-Hui, XU Jia-Rui. Preparation and Thermal Property of Composite Film of Di-hydroxy tetra coordinated silicon/Polyvinyl butyral[J]. Chinese Journal of Applied Chemistry, ;2004, 21(7): 740-741. shu

Preparation and Thermal Property of Composite Film of Di-hydroxy tetra coordinated silicon/Polyvinyl butyral

1.
a College of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275;
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b Department of Chemistry, Guangzhou University, Guangzhou;
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c Shandong Linyi Normal University, Linyi

Corresponding author: SONG Jian-Hua,
Received Date: 4 July 2003
Available Online: 3 March 2004
Fund Project: 中国博士后基金资助课题(2003311004109505) (2003311004109505)

A high reactive penta-coordinated organic silicon compound (KSi (OCH₂CH₂O)₂(OCH₂CH₂OH)) was prepared,by the reaction of silica with ethylene glycol and potassium hydroxide,and di-hydroxy tetra coordinated silicon (OCH₂CH₂O)₂(OCH₂CH₂OH)(OCH₂CH₂OCH₂CH₂OH)(DHTS) was prepared by reacting penta-coordinated silicon complex with ClCH₂CH₂OH.Composite film of DHTS/polyvinyl butyral (PVB) was prepared by a sol-gel method.The thermal property,including glass-transition temperature of the composite film were examined.When the mass ratio of PVB to tetra coordinated silicon was 1:1.7,the on set mass loss temperature of the composite film was increased by 27℃ in comparison with PVB.The transparency and tenacity of the composite film were all increased.But increase of the mass fraction of DHTS could decrease the decomposition temperature of the film.
- coordinated organic silicon,
- inorganic-organic composite film,
- preparation,
- thermal property
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