Plasma surface treatments of poly(L-lactic acid) (PLLA) and poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV)

被引：71
|
作者：
Ferreira, B. M. P. [1 ]
Pinheiro, L. M. P. [2 ]
Nascente, P. A. P. [2 ]
Ferreira, M. J. [3 ]
Duek, E. A. R. [1 ]
机构：
[1] Pontificia Univ Catolica Sao Paulo, Ctr Ciencias Med & Biol, Praca Dr Jose Ermirio Moraes 290, BR-18030230 Sorocaba, SP, Brazil
[2] Univ Fed Sao Carlos, Dept Mat Engn, BR-13560 Sao Carlos, SP, Brazil
[3] Lab Nacl Luz Sincrotron, BR-13084971 Campinas, SP, Brazil
来源：
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2009年 / 29卷 / 03期
基金：
巴西圣保罗研究基金会;
关键词：
PLLA; PHBV; Plasma treatment; Hydrophilicity;
D O I：
10.1016/j.msec.2008.07.026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：806 / 813
页数：8
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