Spinning Carbon Nanotube-Gel Fibers Using Polyelectrolyte Complexation

Granero, Alberto J, Razal, Joselite M, Wallace, Gordon G and in het Panhuis, Marc 2008, Spinning Carbon Nanotube-Gel Fibers Using Polyelectrolyte Complexation, Advanced Functional Materials, vol. 18, no. 23, pp. 3759-3764, doi: 10.1002/adfm.200800847.

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Title Spinning Carbon Nanotube-Gel Fibers Using Polyelectrolyte Complexation
Author(s) Granero, Alberto J
Razal, Joselite MORCID iD for Razal, Joselite M orcid.org/0000-0002-9758-3702
Wallace, Gordon G
in het Panhuis, Marc
Journal name Advanced Functional Materials
Volume number 18
Issue number 23
Start page 3759
End page 3764
Total pages 6
Publisher Wiley-VCH Verlag
Place of publication Weinheim, Germany
Publication date 2008
ISSN 1616-301X
Keyword(s) Biopolymers
Carbon nanotubes
Fibers
Gels
Polyelectrolytes
Summary Biopolymer-single walled carbon nanotube (SWNT)-biopolymer fibers were prepared using a continuous flow spinning approach. Polyelectrolyte complexation was facilitated by injecting a SWNT-biopolymer dispersion into a coagulation bath containing a biopolymer of opposite charge. We showed that the ability to spin fibers and their properties depend on processing conditions such as polyelectrolyte pH, sonolysis regime (conditions employed to disperse SWNT) and the order of adding the anionic and cationic biopolymer solutions. Maximizing the ionic nature through changes in the pH increased spin-ability, while combining a sonicated dispersion with an as-prepared (non-sonicated) polyelectrolyte solution allowed us to optimize sonolysis conditions while retaining spin-ability of fibers with smooth surface morphology. Addition of the cationic biopolymer-SWNT dispersion to the anionic biopolymer solution resulted in mechanical reinforcement with the increase in SWNT loading fraction. All fibers decreased their electrical resistance upon exposure to water vapor.
Language eng
DOI 10.1002/adfm.200800847
Field of Research 109999 Technology not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1.1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30061350

Document type: Journal Article
Collection: Faculty of Science, Engineering and Built Environment
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