Thermal properties of chlorosulfonated polyethylene via gas–solid phase method
- 237 Downloads
The thermal properties of chlorosulfonated polyethylene (CSM), which was prepared via gas–solid phase method, were studied in this article. The thermal curves were completely tested by differential thermal analysis, thermogravimetry, and differential thermogravimetry. The results showed that CSM 3550 and CSM 3570 prepared by gas–solid phase method had more excellent thermal properties (high initial/final temperature of degradation) than those via solution method, due to the uniform chlorine distribution of them in macromolecular chain. The differential scanning calorimetry curves showed that the transitions of CSM 3550 and CSM 3570 from glassy to the elastic state were also higher than those via solution method. Particularly, CSM 3570 was amorphous and no clear melting peak was observed during the melting process.
KeywordsChlorosulfonated polyethylene (CSM) Gas–solid phase method Thermal analysis Thermal properties
- 1.Ennis R. Chlorosulfonated polyethylene. Kirk-Othmer encyclopedia of chemical technology. 2000. doi: 10.1002/0471238961.0308121505141409.a01.
- 2.Zhao X, Liu D. A comprehensive handbook of synthetic rubber technology, 2nd ed. Beijing: Chemical Industry Press; 2006.Google Scholar
- 4.Zhang J. Studies on the preparation and properties of CSM/modified compound K composites [D]. Shanghai: East China University of Science and Technology; 2012.Google Scholar
- 6.Zhu J, Bai J. CN. Patent 101735350 A. 2010.Google Scholar
- 10.Wang N. The influencing factors and structure analysis of the thermal stability of in-situ chlorinating graft copolymer [D]. Qingdao: Qing University of Science & Technology; 2012.Google Scholar
- 11.Edward G, Brame JR. Determination of chlorine distribution in chlorosulfonated polyethylenes by high-resolution NMR spectroscopy. J Polym Sci. 1971;1:1971.Google Scholar