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J Colloid Interface Sci ; 376(1): 255-61, 2012 Jun 15.
Article in English | MEDLINE | ID: mdl-22459026

ABSTRACT

The morphological and wetting properties of chitosan films containing dansyl derivatives have been investigated. By means of dynamic contact angle measurements, we study the modification of surface properties of chitosan-based films due to UV irradiation. The results were analyzed in the light of the molecular-kinetic theory which describes the wetting phenomena in terms of the statistical dynamics for the displacement of liquid molecules in a solid substrate. Our results show that the immobilization of dansyl groups in the chitosan backbone leads to a pronounced enhancement of the UV sensitivity of polymeric films.


Subject(s)
Chitosan/chemistry , Phosphatidylcholines/chemistry , Wettability/radiation effects , Ultraviolet Rays
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