Please use this identifier to cite or link to this item:

Controlled deposition of structured polymer films : chemical and rheological factors in chitosan film formation

File Description SizeFormat 
Maloy_Sedef_r.pdfVersion for non-UH users. Copying/Printing is not permitted1.25 MBAdobe PDFView/Open
Maloy_Sedef_uh.pdfVersion for UH users1.27 MBAdobe PDFView/Open

Item Summary

Title: Controlled deposition of structured polymer films : chemical and rheological factors in chitosan film formation
Authors: Maloy, Sedef Fiona
Keywords: Chitosan and modified chitosan
polymer films
micellar structure
Issue Date: May 2012
Publisher: [Honolulu] : [University of Hawaii at Manoa], [May 2012]
Abstract: The technique of spread-coating was utilized to create thin films of chitosan polymer. The effect of deposition rate on film thickness was characterized for solutions of deacetylated and butyl-modified chitosan. For the range of deposition rates analyzed, the relationship between film thickness and increasing deposition rate fell into three distinct regions: an initial inverse relationship, a second linearly increasing relationship, and a final region wherein the film thickness remained constant. Results suggest that film thickness was both controllable and reproducible and that hydrophobic modification of the polymer extends the range over which a linear relationship between film thickness and deposition rate is achieved.
Viscometry and fluorescence spectroscopy were employed to characterize the micellar characteristics of solutions of both deacetylated and butyl-modified chitosan. Deacetylated chitosan solutions possessed more interconnected hydrophobic domains that had more intermolecular micellar characteristics, while butyl-modified chitosan solutions had more intramolecular micellar characteristics and less interconnected hydrophobic domains.
Description: M.S. University of Hawaii at Manoa 2012.
Includes bibliographical references.
Appears in Collections:M.S. - Chemistry

Items in ScholarSpace are protected by copyright, with all rights reserved, unless otherwise indicated.