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Citation: ZHANG Li, ZHANG Chen, LI Guo-Ming. Thermal Analysis of Film of Siloxane-acrylate Copolymer Microemulsions[J]. Chinese Journal of Applied Chemistry, ;2005, 22(1): 79-82. shu

Thermal Analysis of Film of Siloxane-acrylate Copolymer Microemulsions

1.
Department of Chemistry, South China Normal University, Guangzhou 510631

Corresponding author: ZHANG Li,
Received Date: 12 February 2004
Available Online: 5 June 2004
Fund Project: 广东省科委重点攻关项目(2KM06202S) (2KM06202S)广州市高新技术(2000Z08601)资助项目 (2000Z08601)

The thermal properties of four siloxane-acrylate copolymer microemulsions film were investigated by thermal methods as the function of siloxane content, presence of MMA and curing time. The results show that the difference of four siloxanes only slightly affects the T_g of the films when the siloxane content is 2%, but the T_g decreases with the increase of siloxane content. The residues of the films by heating at 400℃ increase from 0.16% to 9.67% with the change of the mass fraction of siloxane from 0 to 15%. Maximum decomposition temperature has increased by 56.7℃ when 3% MAA(mass fraction) is present in the copolymerization process, which indicates that carboxyl monomer greatly enhances the thermal stability of the films.
- siloxane,
- acrylate,
- microemulsion
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