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Highly-Tunable Polymer/CNTs Nanostructures: A Rapid and Facile Approach for Controlled Architecture and Composition

Published online by Cambridge University Press:  10 April 2013

Guy Mechrez ,
Ran Y. Suckeveriene ,
Moshe Narkis  and
Ester Segal
Guy Mechrez
Affiliation:
Department of Chemical Engineering, Technion – Israel Institute of Technology, Haifa 32000, Israel.
Ran Y. Suckeveriene
Affiliation:
Department of Chemical Engineering, Technion – Israel Institute of Technology, Haifa 32000, Israel.
Moshe Narkis
Affiliation:
Department of Chemical Engineering, Technion – Israel Institute of Technology, Haifa 32000, Israel.
Ester Segal
Affiliation:
Department of Biotechnology and Food Engineering, Technion – Israel Institute of Technology, Haifa 32000, Israel The Russell Berrie Nanotechnology Institute, Technion – Israel Institute of Technology, Haifa 32000, Israel
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Abstract

This research presents a new fabrication method for tailoring polymer/carbon nanotubes (CNTs) nanostructures with controlled architecture and composition. The CNTs are finely dispersed in a polymeric latex i.e. polyacrylate, via ultrasonication, followed by a microfiltration process. The later step allows preserving the homogeneous dispersion structure in the resulting solid nanocomposite. The combination of microfiltration and proper choice of the polymer latex allows for the design of complex nanostructures with tunable properties e.g., porosity, mechanical properties. An important attribute of this methodology is the ability to tailor any desired composition of polymer-CNTs systems, i.e., nanotubes content can practically vary anywhere between 0 to 100 wt%. Thus, for the first time a given polymer/CNTs system is studied over the entire CNTs composition, resembling immiscible binary polymer blends. The polymer in these systems exhibits a structural transition from a continuous matrix (nanocomposite) to segregated domains dispersed within a porous CNTs network. An analogy of this structural transition to phase inversion phenomena in immiscible polymer blends is suggested.

Keywords

nanostructurestructuralpolymer
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1505: Symposium W – Carbon Nanomaterials , 2013 , mrsf12-1505-w03-75
Copyright
Copyright © Materials Research Society 2013

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