Allylamine plasma‐polymerization on PLLA surface evaluation of the biodegradation |
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| Authors: | Nadia Guerrouani Audrey Baldo Alexandre Bouffin Christian Drakides Marie‐Françoise Guimon André Mas |
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| Affiliation: | 1. Organisation Moléculaire Evolution et Matériaux Fluorés, UMR 5073 CNRS, Université Montpellier II, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France;2. Laboratoire Hydrosciences, UMR 5569 CNRS, Université Montpellier II, Place Eugène Bataillon, CCMSE, 34095 Montpellier Cedex 5, France;3. Laboratoire de Physico‐Chimie Moléculaire, UMR 5624 CNRS, Hélioparc Pau‐Pyrénées, Avenue du Président‐Angot, 64053 Pau Cedex 9, France |
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| Abstract: | Biodegradation of poy(L ‐lactide) (PLLA) films and filaments recovered with hydrophilic layer (contact angle  = 14°, surface energy γs = 70.9 mJ m?2) from allylamine plasma polymerization was investigated under aerobic conditions in sludge. XPS and FTIR‐ATR analysis of the plasma layer showed 14.4% N and 16.6% O mainly as amide group. Optical microscopy showed much bacteria colonies on treated PLLA surface than on untreated one. Weight loss and oxygen consumption after 65 days were 4–5% and 4 mg h?1 per gram polymer respectively. The fact that biodegradation lag‐phase for treated PLLA was released quicker (7 days) than untreated one (14 days), could be related to the presence of hydrophilic plasma layer that improved swelling‐dissolution of hydrolyzed molecular fragments. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007 |
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| Keywords: | poly(L‐lactide) biodegradation plasma polymerization surface characterization |
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