NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.14 [2007] >
IJCT Vol.14(2) [March 2007] >


Title: Synthesis of PAN nanoparticles via nonconventional microemulsion technique using Co(II)/EDTA in situ complex
Authors: Biswal, Trinath
Sahoo, Prafulla K
Keywords: Microemulsion
CoCl₂/EDTA in situ complex
Nano particle
Kinetics
TEM
Issue Date: Mar-2007
Publisher: CSIR
IPC CodeC08F2/00, C08J3/00
Abstract: Synthesis of polyacrylonitrile nanoparticles was carried out under the catalytic effect of in situ developed Co(II)/EDTA complex with ammonium persulphate as initiator, in the absence of added emulsifier. The microemulsion polymerization was studied at varying concentrations of initiator, monomer, complex and solvent over a temperature range of 30-70ºC. The overall activation energy (Ea, 49.79 kJ/mol), energy of dissociation of initiator (Ed, 82.68 kJ/mol), number of micelles (0.163 x 1018) and the viscosity average molecular weight of the polymer were computed. The distribution of particle sizes was determined by transmission electron microscopy (TEM). It was found that the oil-in-water polymerization was stabilized by the presence of the CoCl₂/EDTA in situ complex reducing the particle size into nano order. The average diameters of PAN nano particles, obtained by TEM, were in the range of 50-150 nm at maximum conversion. The experimental particle size was mainly dependent on the concentration of complex and temperature.
Page(s): 119-125
ISSN: 0971–457X
Source:IJCT Vol.14(2) [March 2007]

Files in This Item:

File Description SizeFormat
IJCT 14(2) (2007) 119-125.pdf463.75 kBAdobe PDFView/Open
 Current Page Visits: 1090 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 606155 since 06-Feb-2009  Last updated on 21-Oct-2014Webmaster: nopr@niscair.res.in