Статья

Radiation curing of collagen/divinyl ether enhanced by pyridinium salts

Bo JiangEngineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, People's Republic of ChinaYong ZhouKey Laboratory for Radiation Physics and Technology of Education Ministry, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, Sichuan 610064, People's Republic of ChinaZheng YangAnalytical and Testing Center, Sichuan University, Chengdu, Sichuan 610064, People's Republic of ChinaZhihong WuEngineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, People's Republic of ChinaGuanglin HuangDepartment of Chemistry, Sichuan University, Chengdu, Sichuan 610064, People's Republic of ChinaLibin LinKey Laboratory for Radiation Physics and Technology of Education Ministry, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, Sichuan 610064, People's Republic of ChinaXingdong ZhangEngineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, People's Republic of China

2005en

ABI

Аннотация

Abstract The radiation curings of collagen/divinyl ether enhanced by several nitrogenous onium salts having relatively stable nonnucleophilic anion (PF 6 − ) have been investigated. Results of glass transformation temperature ( T g ) measurements and IR spectroscopy analysis and solvent extractions to the crosslinked polymer networks demonstrate that the curing reactions have been initiated by electron beam irradiation in the mixture system of collagen/divinyl ether and onium salts under different atmosphere conditions. The experimental data show the presence of an approximating linear relationship between double bond conversion and gel fraction after the calculation of conversion from IR spectra in oligomer and the measure of gel content at different total radiation doses. Practical values approximate theoretical values in applying gelation theory of the relationship of gel fraction and double bond conversion. In comparison with the influence of different inhibitors, the curing reaction with pyridinium salts is a polymerization and crosslinking of cationic mechanism, but radicals play an important role in initiation. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 98: 2094–2100, 2005

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Идентификаторы

DOI: 10.1002/app.21992

Цитирования и источники

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