Ionizing radiation induced functionalization of polymeric materials

2^nd International Conference and Exhibition on Materials Science and Chemistry

July 13-14, 2017 Berlin, Germany

Maria Helena Casimiro

University of Lisbon, Portugal

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

Radiation processing techniques are based on the physical interaction of radiation with matter which is capable of promoting specific chemical reactions. In particular, gamma irradiation, a clean and environmental friendly technology; as there is no need of solvents, initiators or high temperatures, leading to no residues; has been successfully applied over the years in the preparation/ modification of polymers. By suiting the experimental conditions like irradiation method, dose rate, irradiation atmosphere, samples� absorbed dose, reactants� concentration, etc., it is possible to functionalize polymeric based materials, tailor its properties and adequate them to different applications (mainly through polymerization, crosslinking and/or grafting reactions). In this presentation, the methodology that our team have been carrying out on the development/functionalization of chitosan based matrices and PVA based membranes respectively for biomedical applications (drug release systems and wound dressings) and for catalysis (polymeric catalytic membrane reactors for production of valuable compounds as aromas and biodiesel), using gamma-radiation as a modifying tool will be highlighted.

Biography :

Email: casimiro@ctn.tecnico.ulisboa.pt