What is it about?

The present attempt is intended to prepare nanocomposites of lactic acid grafted chitosan and layered silicates. Nanocomposites were prepared by dissolving chitosan and dispersing sodium montmorillonite in aqueous solution of L-lactic acid with subsequent heating and film casting

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Why is it important?

The utilization of biopolymers and the development of organic–inorganic hybrids are ever increasing interest of material science researchers around the globe for various applications.


Sorption behavior of samples has been followed by measuring swelling degree and contact angle. The films have shown enhanced hydrophilicity when compared with polylactic acid (PLA). Issues on the interactions of polycationic chitosan with clay are also discussed. It is observed that nanocomposites are exhibiting better thermal and physical properties than neat chitosan-g-LA and PLA.

Dr Pratheep K Annamalai
University of Queensland

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This page is a summary of: Preparation and characterization of novel hybrid of chitosan-g-lactic acid and montmorillonite, Journal of Biomedical Materials Research Part A, January 2006, Wiley,
DOI: 10.1002/jbm.a.30738.
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