Journal
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS
Volume 29, Issue 3, Pages 806-813Publisher
ELSEVIER
DOI: 10.1016/j.msec.2008.07.026
Keywords
PLLA; PHBV; Plasma treatment; Hydrophilicity
Categories
Funding
- FAPESP [03/02188-5]
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The surfaces Of poly(L-lactic acid) (PLLA) and poly (hydroxybutyrate-co-hydroxyvalerate) (PHBV) were modified by oxygen and nitrogen plasma treatments. The physical and chemical surface characteristics were evaluated by contact angle tests, scanning electron microscopy (SEM). atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS). The plasma treatments caused an increase in both contact angle and roughening, altered the surface morphology, inserted polar groups, and, consequently. enhanced the hydrophilicity for both PLLA and PHBV polymers. (C) 2008 Elsevier B.V. All rights reserved.
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