DSpace About DSpace Software

Dyuthi @ CUSAT >
Faculty of Technology >

Please use this identifier to cite or link to this item: http://purl.org/purl/3229

Title: Studies on Polymer Bound Antioxidants
Authors: Shanti,Avirah A
Keywords: Natural Rubber
Styrene—butadiene rubber
Polybutadiene rubber
Issue Date: 20-Mar-1995
Publisher: Cochin University of Science and Technology
Abstract: The primary aim of this work has been to prepare efficient and cost effective polymer bound antioxidants by direct’ attachment of conventional antioxidants to a modified polymer. Due to the importance and easy availability of natural rubber in Kerala, it is proposed to make use of low molecular weight natural rubber as the polymer substrate for binding the antioxidant in most cases. The molecular weight of such low molecular weight natural rubber can be easily manipulated by varying the time of mastication, UV—irradiation etc. Further, the bound antioxidant may also get vulcanized during the vulcanization of the elastomer to which it is added, making the antioxidant non—volatile and non extractable. Several methods are proposed to be investigated for attaching the antioxidant to the low molecular weight natural rubber such as modified Friedel-Craft's alkylation reaction, binding during UV—irradiation, binding during aggressive mastication etc. The efficiency of such rubber bound antioxidants is proposed to be compared with that of conventional antioxidants in terms of volatility, extractability in solvents, ageing resistance etc. Naturally occuring antioxidants such as cardanol, are also proposed to be modified by binding them to low molecular weight natural rubber. The study is undertaken with the intention of generating a class of bound antioxidants which can be used in elastomers for aggressive and long term application.
Description: Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology
URI: http://dyuthi.cusat.ac.in/purl/3229
Appears in Collections:Faculty of Technology

Files in This Item:

File Description SizeFormat
Dyuthi-T1203.pdfPdf3.01 MBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback