CENTRO DE INVESTIGACIONES EN FISICA E INGENIERIA DEL CENTRO DE LA PROVINCIA DE BUENOS AIRES
Unidad Ejecutora - UE
A Microstructural Study of Acrylic-Modified Chitosan by Means of PALS and SAXS
AMALVY, JAVIER; MACCHI, CARLOS; ANBINDER, PABLO SEBASTIÁN; SOMOZA, ALBERTO
DEFECT AND DIFFUSION FORUM
Trans Tech Publications
Año: 2017 vol. 373 p. 265 - 265
Chemical modification of chitosan, specially grafting with different polymers is animportant strategy in the production of bio-based materials with enhanced properties. In the present study, chitosan was grafted with n-butyl acrylate, in a surfactant-free emulsion polymerization. Stable dispersions with high grafting efficiency were obtained and the microstructure of the casted films was analyzed by positron annihilation lifetime spectroscopy and small angle X-ray scattering. Results are discussed in terms of the number and distribution of the grafting sites.