Free Access
Issue
Analusis
Volume 26, Number 1, January/February 1998
Chromatographie en phase gazeuse
Page(s) 1 - 7
Section Original articles
DOI https://doi.org/10.1051/analusis:1998102
Analusis 26, 1-7 (1998)
DOI: 10.1051/analusis:1998102

Étude par coulométrie de la pénétration de l'eau dans des films de polymères formulés

K. Vallée-Rehel1, B. Mariette1, P.A. Hoarau1 and P. Guerin2

1  DCN Indret, CESMAN, 44620 La Montagne, France
2  Laboratoire de Physico-Chimie des Biopolymères, Université de Paris XII-UMR 27 CNRS, 94320 Thiais, France


Abstract
Hulls protection towards settlement and growth of fouling is obtained by antifouling paints with a progressive release of toxic molecules at the ships surface. The research of a new generation of paints more compatible with living species implies to understand the phenomena involved in paints erosion and biocides release. Water penetration in polymeric matrix is important in regard to the control of ester functions hydrolysis and so to the control of bioactive molecules release. Among the different analytical methods aimed at the determination of the water amount in polymers, we have proposed to use coulometry in order to study the water penetration in polymeric films immersed in synthetic sea water. The analytical protocols developed have enabled to understand the evolution of six different matrixes during the immersion and the comparison of their ability to control release. Coulometry has made possible the study of the effects of additives used in the paints formulation on water uptake. Experimental data have shown that additives modify the evolution of the binder during immersion and that activity of paints is complex. Coulometry is a useful method to test polymers aimed at marine applications.


Key words: coulometry / water uptake / antifouling / paints / DSC / TGA.


© EDP Sciences, Wiley-VCH 1998

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.