Interactions of active carbon with low- and high-molecular weight polyethylene glycol and polyethylene oxide

Composites of active carbon in a polymeric matrix composed of polyethylene oxide (PEO) and polyethylene glycol (PEG) having different molecular weight distributions were obtained by melt mixing. Characterization of the amount of bound polymer in the whole range of composition for the polymeric matri...

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Bibliographic Details
Published in:Journal of applied polymer science 2006-06, Vol.100 (5), p.3490-3497
Main Authors: Bar-Chaput, Sandrine, Carrot, Christian
Format: Article
Language:English
Subjects:
active carbon
adsorption
Applied sciences
Composites
Exact sciences and technology
fillers
Forms of application and semi-finished materials
molecular weight distribution
polyethylene oxide
Polymer industry, paints, wood
Technology of polymers
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Summary:Composites of active carbon in a polymeric matrix composed of polyethylene oxide (PEO) and polyethylene glycol (PEG) having different molecular weight distributions were obtained by melt mixing. Characterization of the amount of bound polymer in the whole range of composition for the polymeric matrix has been performed after dissolution of the matrix in water. Size exclusion chromatography of the solution has been used to determine the composition of the polymeric bound layer. It has been shown that in these conditions of mixing, the amount of bound polymer slightly decreases from a pure PEG to a pure PEO matrix. Furthermore, PEO is preferentially bound to the active carbon. A simple model is used to show that bonding occurs preferentially by monomeric units rather than by chain ends. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 3490–3497, 2006
ISSN:0021-8995
1097-4628
DOI:10.1002/app.22149