Influence of radiation sterilization on poly(ester urethanes) designed for medical applications

• Autorzy: Przybytniak G. , Kornacka E. , Ryszkowska J. , Bil M. , Rafalski A. , Woźniak P. , Lewandowska-Szumieł M.
• Konferencja: Proceedings of the 2nd Polish-Japanese Workshop on Materials Science "Materials for Sustainable Development in the 21st Century" 12-15 October 2005, Warsaw, Poland
• Języki publikacji: EN

Abstrakty

EN

Preparation of scaffolds for tissue regeneration requires elucidation of chemical and physical processes induced by ionizing radiation during radiation sterilization of polymeric materials used for these purposes. Such treatment induces many unintended and desired reactions that lead either to degradation or cross-linking of macromolecules. It was found that in poly(ester urethane) the ester segments are responsible predominantly for radiation induced phenomena. Some radicals generated following irradiation were identified under cryogenic conditions. Upon exposure to sterilizing dose cross-linking was confirmed on the basis of rheological changes in melted polymers. The results obtained by EPR spectroscopy and DRS revealed a relatively high susceptibility of poly(ester urethanes) on oxidation.

Słowa kluczowe

EN

polyurethane; radiation sterilization; EPR; cross-linking; degradation

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2006
• Tom: Vol. 51,suppl.1
• Strony: 121--128
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Przybytniak G.

autor

Kornacka E.

autor

Ryszkowska J.

autor

Bil M.

autor

Rafalski A.

autor

Woźniak P.

autor

Lewandowska-Szumieł M.

• Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warszawa, Poland, Tel.: [phone], Fax: [phone],

Bibliografia

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