Polymer nanocomposites from natural clay: understanding clay-PEG interactions and their effect on spacing between clay-plates

OAJ Materials and Devices

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Field Value
 
Title Polymer nanocomposites from natural clay: understanding clay-PEG interactions and their effect on spacing between clay-plates
 
Creator GHYATI, Souad
 
Subject chemistry
natural clay, nanocomposites, PEG, intercalation

 
Description The interactions between clay-plates and hydrophilic polymer are investigated assuming that the polyethylene glycol (PEG) chains are grafted onto face-to-face clay-plates. Besides the usual van der Waals attractive interaction, the clay-plates experience a repulsive effective interaction, due to the excluded volume force between monomers along the grafted PEG chains. The face-to-face clay-plates then play the role of polymer brushes. The free energy (per unit area) of a clay-plate pair is the sum of these interactions, and from its expression, we determine the minimal inter-sheet distance, after intercalation, which corresponds to a critical percentage of PEG. Finally, our result is in good agreement with some recent experimental work.
 
Publisher Collaborating Academics
 
Contributor
 
Date 2018-04-03
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://caip.co-ac.com/index.php/materialsanddevices/article/view/32
 
Source Materials and Devices; Vol 3, No 1 (2018)
24953911
 
Language eng
 
Relation http://caip.co-ac.com/index.php/materialsanddevices/article/view/32/29
 
Rights Copyright (c) 2018 GHYATI Souad
http://creativecommons.org/licenses/by-nc-nd/4.0
 

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