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Controlled Amine Functionalization and Hydrophilicity of a Poly(lactic acid) Fabric
Author(s) -
Dai Xiujuan J.,
Plessis Johan du,
Kyratzis I. Louis,
Maurdev George,
Huson Mickey G.,
Coombs Chris
Publication year - 2009
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200800216
Subject(s) - amine gas treating , surface modification , derivatization , materials science , chemical engineering , plasma polymerization , contact angle , duty cycle , polymerization , polymer chemistry , chemistry , organic chemistry , polymer , composite material , voltage , electrical engineering , high performance liquid chromatography , engineering
The surface of PLA fabric has been successfully modified by pulsed plasma polymerization of heptylamine (PPHA) giving increased hydrophilicity and achieving a sufficient level of primary amine functionality (3.5%) for practical application in biotechnology. This is the first report that the density of primary amine (–NH 2 ) in PPHA, quantified by chemical derivatization, can be controlled by selection of pulsed plasma conditions. The duty cycle and the average RF power were the key parameters for achieving both a higher density of primary amine and increased hydrophilicity.