Resumo

GONZALEZ TORRES, Maykel; GALEGO FERNANDEZ, Norma; ORTIZ DEL TORO, Pedro  e  RAPADO PANEQUE, Manuel. Raman spectroscopy of poly (3-hydroxybutryrate) modified with poly (vinyl acetate) by radiation-induced copolymerisation. Nucleus [online]. 2007, n.42, pp. 40-44. ISSN 0864-084X.

Poly (3-hydroxybutyrate) (PHB) is an important material used in the field of medicine. However in common conditions, PHB has some disadvantages. It is very brittle and slightly hydrophobic polymer. This somewhat limit its applications. Radiation can be used to improve its chemical properties. In the present study, the substrate, modified by radiation-induced graft copolymerization with vinyl acetate (VAc), was characterized using FTIR (Fourier Transform Infra-red) and Raman spectroscopy. FTIR spectroscopy did not reveal any significant bands but Raman spectroscopy revealed the formation of new bands that characterize the new material.

Palavras-chave : polymers; graft polymers; gamma radiation; raman spectroscopy; radiation doses.

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