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Degradation product profiles of melt spun in situ cross-linked poly(epsilon-caprolactone) fibers
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Polymer Technology.
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2015 (English)In: Materials Chemistry and Physics, ISSN 0254-0584, E-ISSN 1879-3312, Vol. 156, 82-88 p.Article in journal (Refereed) Published
Abstract [en]

In situ cross-linking of poly(epsilon-caprolactone) (PCL) fiber with bis-(epsilon-caprolactone-4-yl) (BCY) was shown to be a feasible approach to compensate for reduction in molar mass of PCL during melt-spinning. The effect of in situ cross-linking on the degradation profile of melt spun PCL fibers with different amounts of BCY was evaluated using electrospray ionization-mass spectrometry. Degradation of the cross-linked fibers was carried out in aqueous medium at 37 degrees C and 60 degrees C for different periods of time. The degradation profiles were then compared with uncross-linked fiber and 3D porous cross-linked film of PCL Interesting differences in the degradation product profiles with linear, cyclic or BCY-related low molar mass compounds were observed, clearly demonstrating the effect of cross-linking and processing on the degradation process and formation of water-soluble products. In addition the degradation product profiles demonstrated that in situ cross-linking is a feasible technique for counteracting degradation reactions during melt-spinning.

Place, publisher, year, edition, pages
2015. Vol. 156, 82-88 p.
Keyword [en]
Biomaterials, Polymers, Aging, Electron microscopy
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-166321DOI: 10.1016/j.matchemphys.2015.02.028ISI: 000352667300011Scopus ID: 2-s2.0-84925233518OAI: oai:DiVA.org:kth-166321DiVA: diva2:811215
Note

QC 20150511

Available from: 2015-05-11 Created: 2015-05-07 Last updated: 2017-12-04Bibliographically approved

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Hakkarainen, Minna

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