Surface modification and degradation of poly(lactic acid) films by Ar-plasma

Surface modification of poly(lactic acid) (PLA) film surface by Ar-plasma was investigated by contact angle measurements and XPS in order to answer the following two questions. (1) Could the Ar-plasma modify the PLA film surfaces? (2) What chemical reactions occurred on the film surfaces during the...

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Bibliographic Details
Published in:Journal of adhesion science and technology 2002-01, Vol.16 (8), p.1041-1054
Main Authors: Inagaki, N., Narushima, K., Tsutsui, Y., Ohyama, Y.
Format: Article
Language:English
Subjects:
Applied sciences
argon plasma treatment
Coating, metallization, dyeing
contact angle
Exact sciences and technology
Machinery and processing
Plastics
poly (lactic acid)
Polymer industry, paints, wood
surface modification
Technology of polymers
xps
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Summary:Surface modification of poly(lactic acid) (PLA) film surface by Ar-plasma was investigated by contact angle measurements and XPS in order to answer the following two questions. (1) Could the Ar-plasma modify the PLA film surfaces? (2) What chemical reactions occurred on the film surfaces during the Ar-plasma treatment? The Ar-plasma treatment did not lead to hydrophilic modification of the PLA film surface, but to degradation reactions of the PLA film. Poor modification may be due to instability of the carbon radicals formed from C-O bond scission in the PLA chains by the Ar-plasma.
ISSN:0169-4243
1568-5616
DOI:10.1163/156856102760146156