Polymer nanocomposites from natural clay: understanding clay-PEG interactions and their effect on spacing between clay-plates
OAJ Materials and Devices
View Publication InfoField | 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 |
|