Cationic ring opening polymerization of octamethylcyclotetrasiloxane initiated by solid superacid
- Authors: Xia Y.1, Cao D.1, Sun Y.2, Li F.2, Qi Z.1
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Affiliations:
- College of Chemistry and Chemical Engineering
- Jiangsu Maysta Chemical Co., Ltd.
- Issue: Vol 42, No 3 (2016)
- Pages: 307-311
- Section: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/215561
- DOI: https://doi.org/10.1134/S1087659616030184
- ID: 215561
Cite item
Abstract
Kinetics of the cationic ring opening polymerization of octamethylcyclotetrasiloxane (D4) in bulk initiated by solid superacid was studied. The optimalizing experimental conditions were based on preliminary experiments. Higher temperature was beneficial to equilibrium conversion while stirring intensity beyond a certain level displayed no obvious effect on the rate of the reaction. A kinetic model was elicited and kinetic parameters were obtained through optimization. The calculated activation energies were 32.6 and 34.1 kJ mol–1 for D4 and all other annuluses (Dx), respectively.
About the authors
Yong Xia
College of Chemistry and Chemical Engineering
Email: qizhengjian@seu.edu.cn
China, Nanjing, Jiangsu, 211189
Du Cao
College of Chemistry and Chemical Engineering
Email: qizhengjian@seu.edu.cn
China, Nanjing, Jiangsu, 211189
Yu Sun
Jiangsu Maysta Chemical Co., Ltd.
Email: qizhengjian@seu.edu.cn
China, Nanjing, 210046
Fengfu Li
Jiangsu Maysta Chemical Co., Ltd.
Email: qizhengjian@seu.edu.cn
China, Nanjing, 210046
Zhengjian Qi
College of Chemistry and Chemical Engineering
Author for correspondence.
Email: qizhengjian@seu.edu.cn
China, Nanjing, Jiangsu, 211189