NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Fibre & Textile Research (IJFTR) >
IJFTR Vol.33 [2008] >
IJFTR Vol.33(4) [December 2008] >


Title: Development of ion exchanger by modification of polypropylene fibre waste using radiation–induced graft polymerization of acrylamide and subsequent amination
Authors: Gupta, Bhuvanesh
Kanda, Vivek
Sethi, Puneet
Saxena, Shalini
Keywords: Acrylamide
Amination
Graft polymerization
Hoffmann degradation
Polypropylene
Issue Date: Dec-2008
Publisher: CSIR
IPC CodeInt. Cl. ⁸ D06M14/00
Abstract: Radiation-induced graft polymerization of acrylamide onto polypropylene fibre waste has been carried out using pre-irradiation technique to develop material with different degrees of grafting. The influence of reaction conditions, such as pre-irradiation dose, monomer concentration, reaction time and ferrous sulfate, on the degree of grafting has also been studied. The addition of ferrous sulfate beyond 0.4% concentration leads to the homopolymer free grafting reaction. The degree of grafting increases with the increase in monomer concentration, reaches maximum at 30% monomer concentration and then decreases with the further increase in the monomer concentration. A continuous increase in the grafting is achieved with the pre-irradiation dose. The replacement of the ferrous sulfate with acetone as an organic solvent causes complete homopolymer inhibition but a much lower graft levels as compared to the ferrous sulfate addition. The grafted fibre is subsequently aminated by Hoffmann degradation method and the fibre with a maximum ion exchange capacity up to 6.2 meq/g for a graft level of 198% is achieved. The modified fibre also shows excellent water uptake which increases as the degree of grafting increases.
Page(s): 431-437
ISSN: 0971-0426
Source:IJFTR Vol.33(4) [December 2008]

Files in This Item:

File Description SizeFormat
IJFTR 33(4) 431-437.pdf262.79 kBAdobe PDFView/Open
 Current Page Visits: 587 
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: 624628 since 06-Feb-2009  Last updated on 13-Nov-2014Webmaster: nopr@niscair.res.in