Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/28587

TitleThermal and hydrolytic degradation of electrospun fish gelatin membranes
Author(s)Correia, D. M.
Padrão, Jorge
Rodrigues, L. R.
Dourado, Fernando
Lanceros-Méndez, S.
Sencadas, Vítor João Gomes Silva
KeywordsFish gelatin
Electrospun membranes
Thermal degradation
Hydrolytic degradation
Biomaterials
Issue date2013
PublisherElsevier
JournalPolymer Testing
Abstract(s)The thermal and hydrolytic degradation of electrospun gelatin membranes cross-linked with glutaraldehyde in vapor phase has been studied. In vitro degradation of gelatin membranes was evaluated in phosphate buffer saline solution at 37 °C. After 15 days under these conditions, a weight loss of 68% was observed, attributed to solvation and depolymerization of the main polymeric chains. Thermal degradation kinetics of the gelatin raw material and as-spun electrospun membranes showed that the electrospinning processing conditions do not influence polymer degradation. However, for cross-linked samples a decrease in the activation energy was observed, associated with the effect of glutaraldehyde cross-linking reaction in the inter- and intra-molecular hydrogen bonds of the protein. It is also shown that the electrospinning process does not affect the formation of the helical structure of gelatin chains
TypeArticle
URIhttp://hdl.handle.net/1822/28587
DOI10.1016/j.polymertesting.2013.05.004
ISSN0142-9418
e-ISSN0142-9418
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series
CDF - FCD - Artigos/Papers (with refereeing)
CDQuim - Artigos (Papers)

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