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Title: Influence of polymer processing technique on long term degradation of poly(ε-caprolactone) constructs
Authors: Natu, Mădălina V. 
Sousa, Hermínio C. de 
Gil, M. H. 
Keywords: Poly(ε-caprolactone); Hydrolytic degradation; Solvent-casting; Melt-compression; Electrospinning; Supercritical fluid
Issue Date: Jan-2013
Publisher: Elsevier
Citation: NATU, Mădălina V.; SOUSA, Hermínio C.; GIL, M. H. - Influence of polymer processing technique on long term degradation of poly(ε-caprolactone) constructs. "Polymer Degradation and Stability". ISSN 0141-3910. 98:1 (2013) 44–51
Serial title, monograph or event: Polymer Degradation and Stability
Volume: 98
Issue: 1
Abstract: Films, fibers, sponges and disks, based on poly(ε-caprolactone), PCL were prepared using solvent-casting, electrospinning, supercritical fluid processing and melt-compression, respectively. The extent of degradation was determined by measuring the change in morphology, crystallinity and molecular weight (MW). The influence of processing method, MW and drug presence on degradation rate was also evaluated. The different processing techniques produced samples of various morphology and crystallinity. Nevertheless, the differences in degradation rate were not so significant during the advanced stage (18–36 months), while some differences existed during the initial stage (up to 18 months). MW had an important effect on degradation rate, while drug did not. The low MW disks had a degradation rate that was lower by one order of magnitude than high MW constructs.
ISSN: 0141-3910
DOI: 10.1016/j.polymdegradstab.2012.10.030
Rights: openAccess
Appears in Collections:FCTUC Eng.Química - Artigos em Revistas Internacionais

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