Influence of styrene on grafting efficiency of maleic anhydride onto natural rubber

Grafting of maleic anhydride (MA) onto natural rubber (NR) has been investigated by using a radical initiated grafting process. NR was masticated to lower molecular weight than the original NR before treatment with 0.5-1.5% by mole of benzoyl peroxide (BPO) and 5-25% by mole of MA in toluene solutio...

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Main Authors: J. Saelao, P. Phinyocheep
Other Authors: Mahidol University
Format: Conference or Workshop Item
Published: 2018
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Online Access:https://repository.li.mahidol.ac.th/handle/123456789/16456
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spelling th-mahidol.164562018-06-21T15:18:13Z Influence of styrene on grafting efficiency of maleic anhydride onto natural rubber J. Saelao P. Phinyocheep Mahidol University Chemistry Materials Science Grafting of maleic anhydride (MA) onto natural rubber (NR) has been investigated by using a radical initiated grafting process. NR was masticated to lower molecular weight than the original NR before treatment with 0.5-1.5% by mole of benzoyl peroxide (BPO) and 5-25% by mole of MA in toluene solution. Fourier transform infrared spectroscopy (FTIR) and titration method were used to analyze the fixation of MA on the NR. The reaction temperature was varied from 60 to 80°C. The % grafting of MA was higher at higher temperatures. Compared to the reaction without styrene, the addition of 0.1% by mole of styrene in the grafting process increased % MA grafting up to two times. It is postulated that the styrene may act as a charge transfer complex for the reaction of NR with MA. © 2004 Wiley Periodicals, Inc. 2018-06-21T08:12:39Z 2018-06-21T08:12:39Z 2005-01-05 Conference Paper Journal of Applied Polymer Science. Vol.95, No.1 (2005), 28-38 10.1002/app.20810 00218995 2-s2.0-10844264382 https://repository.li.mahidol.ac.th/handle/123456789/16456 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=10844264382&origin=inward
institution Mahidol University
building Mahidol University Library
continent Asia
country Thailand
Thailand
content_provider Mahidol University Library
collection Mahidol University Institutional Repository
topic Chemistry
Materials Science
spellingShingle Chemistry
Materials Science
J. Saelao
P. Phinyocheep
Influence of styrene on grafting efficiency of maleic anhydride onto natural rubber
description Grafting of maleic anhydride (MA) onto natural rubber (NR) has been investigated by using a radical initiated grafting process. NR was masticated to lower molecular weight than the original NR before treatment with 0.5-1.5% by mole of benzoyl peroxide (BPO) and 5-25% by mole of MA in toluene solution. Fourier transform infrared spectroscopy (FTIR) and titration method were used to analyze the fixation of MA on the NR. The reaction temperature was varied from 60 to 80°C. The % grafting of MA was higher at higher temperatures. Compared to the reaction without styrene, the addition of 0.1% by mole of styrene in the grafting process increased % MA grafting up to two times. It is postulated that the styrene may act as a charge transfer complex for the reaction of NR with MA. © 2004 Wiley Periodicals, Inc.
author2 Mahidol University
author_facet Mahidol University
J. Saelao
P. Phinyocheep
format Conference or Workshop Item
author J. Saelao
P. Phinyocheep
author_sort J. Saelao
title Influence of styrene on grafting efficiency of maleic anhydride onto natural rubber
title_short Influence of styrene on grafting efficiency of maleic anhydride onto natural rubber
title_full Influence of styrene on grafting efficiency of maleic anhydride onto natural rubber
title_fullStr Influence of styrene on grafting efficiency of maleic anhydride onto natural rubber
title_full_unstemmed Influence of styrene on grafting efficiency of maleic anhydride onto natural rubber
title_sort influence of styrene on grafting efficiency of maleic anhydride onto natural rubber
publishDate 2018
url https://repository.li.mahidol.ac.th/handle/123456789/16456
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