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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Fibre & Textile Research (IJFTR) >
IJFTR Vol.37 [2012] >
IJFTR Vol.37(2) [June 2012] >
| Title: | Preparation of poly(o-toluidine)/polyacrylonitrile composite fibres using CrO3 |
| Authors: | Üçhöyük, Canan
Karakışla, Meral
Saçak, Mehmet |
| Keywords: | Composite
Conducting fibre
CrO3 oxidant
Polyacrylonitrile
Poly(o-toluidine) |
| Issue Date: | Jun-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Poly(o-toluidine)
(POT) and polyacrylonitrile (PAN) fibres have been used to prepare conducting
composite fibres by
in situ chemical polymerization using
CrO3 as oxidant. The POT content and surface resistivity of POT/PAN
composite fibres have been systematically evaluated as a function of
the polymerization temperature and time, types of
oxidant and dopant, and concentrations of monomer, oxidant and dopant. At the
polymerization carried out at 30 °C for 4 h by 0.125
M o-toluidine,
0.08 M
CrO3 and 1.2 M
HCl, the composite fibres having the highest POT content (about 2.3 %) and the
lowest surface resistivity (about 0.12 Mohm/cm2) are obtained.
Surface resistivity measurements together with FTIR, TGA and SEM techniques
have been used for the characterization of composite fibres prepared.
Furthermore, the mechanical properties of composite such as tensile strength
and elongation-at-break are also measured. SEM images show that the surface of
fibre is coated by POT with a flaky shape and there are accumulation of large
and small POT particles at some regions. |
| Page(s): | 120-126 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Source: | IJFTR Vol.37(2) [June 2012]
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