Influence of Genipin Crosslinking on the Properties of Chitosan-Based Films

Polymers

Nikita Sazhnev¹  Nataliya Kildeeva¹  Mariya Belokon¹  Nikolay Surin²  Evgeniya Svidchenko²  Vladimir Matveev³  Tatyana Petrova³  Anatoliy Chalykh³ 

[1] Department of Chemistry and Technology of Polymer Materials and Nanocomposites, The Kosygin State University of Russia, 119071 Moscow, Russia;Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 119071 Moscow, Russia;Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia;

关键词: chitosan;    polymeric films;    crosslinking;    genipin;    mechanical properties;    sorption isotherm;   

DOI  :  10.3390/polym12051086

来源: DOAJ

【 摘 要 】

Chitosan is a promising environment friendly active polymer packaging material due to its biodegradability, exceptional film forming capacity, great mechanical strength, appropriate barrier property along with intrinsic antioxidant and antimicrobial features. Bifunctional reagent was used for producing water insoluble chitosan films. Biopolymeric films crosslinked by Genipin (Gp), which is a reagent of natural origin, should have high potential in food packaging. The influence of the ratio of functional groups in the chitosan-Gp system on film absorption in the visible and ultraviolet regions of the spectrum, sorption, physical, and mechanical properties of the films has been studied. The degree of chitosan crosslinking in the films obtained from solutions containing Gp was estimated using the experimental data on film swelling and water vapor sorption isotherms. It is demonstrated that crosslinking with genipin improves swelling, water resistance, and mechanical properties of the films.

【 授权许可】

Unknown