Modification of Gelatin by Reaction with 1,6-Diisocyanatohexane

1,6‐Diisocyanatohexane and dimethyl sulfoxide were exploited as crosslinking agent and reaction solvent, respectively, for gelatin modification. Crosslinked samples were fractionated and analyzed by thermogravimetric analysis, infrared spectroscopy, acid and base titrations, and swelling measurement...

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Bibliographic Details
Published in:Macromolecular bioscience 2007-03, Vol.7 (3), p.328-338
Main Authors: Bertoldo, Monica, Bronco, Simona, Gragnoli, Tania, Ciardelli, Francesco
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Cotton Fiber
Cross-Linking Reagents - chemistry
crosslinked gelatin
Cyanates - chemistry
Exact sciences and technology
Forms of application and semi-finished materials
Gelatin - chemistry
gels
Isocyanates
Materials Testing
Molecular Structure
Natural polymers
Physicochemistry of polymers
Polymer industry, paints, wood
Proteins
Surface Properties
Technology of polymers
textile fibers
Thermogravimetry
Water - chemistry
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Summary:1,6‐Diisocyanatohexane and dimethyl sulfoxide were exploited as crosslinking agent and reaction solvent, respectively, for gelatin modification. Crosslinked samples were fractionated and analyzed by thermogravimetric analysis, infrared spectroscopy, acid and base titrations, and swelling measurements. The yield of crosslinking was found to increase with increasing diisocyanate and gelatin concentrations and the amount of bound crosslinker was evaluated. The chemical analysis of the reaction products allowed the process parameters to be related to the properties of the textile/gelatin composites. For this purpose poly(propylene)‐, poly(ethylene terephthalate)‐, and cotton‐based textiles were treated to prepare soft and dimensionally stable supported materials with a gel phase composed of gelatin.
ISSN:1616-5187
1616-5195
DOI:10.1002/mabi.200600215