Kinetics of Waterborne Alkyd/Acrylic Hybrid Resin Free Radical Polymerization by Two Systems of Redox and Thermal Initiators
Kinetics of radical polymerizations of waterborne alkyd/acrylic hybrid resin via batch mini-emulsion technique was studied using redox initiators (TBHP/Fe2+/EDTA/AsAc and TBHP/Fe2+/EDTA/SFS) at relatively low temperatures and thermal initiators (BPO, KPS and AIBN) at higher temperatures to seek th...
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Iran Polymer and Petrochemical Institute
2012-12-01
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Online Access: | http://jips.ippi.ac.ir/article_586_add86ae0a77205ebe3b672333793caaf.pdf |
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doaj-7effa08327d541d1aaafff2e429a1f1f2020-11-24T22:01:41ZfasIran Polymer and Petrochemical Instituteعلوم و تکنولوژی پلیمر1016-32552008-08832012-12-0124214115210.22063/jipst.2012.586586Kinetics of Waterborne Alkyd/Acrylic Hybrid Resin Free Radical Polymerization by Two Systems of Redox and Thermal Initiatorsshirin Madadiali akbar Yousefielham KeshmirizadehKinetics of radical polymerizations of waterborne alkyd/acrylic hybrid resin via batch mini-emulsion technique was studied using redox initiators (TBHP/Fe2+/EDTA/AsAc and TBHP/Fe2+/EDTA/SFS) at relatively low temperatures and thermal initiators (BPO, KPS and AIBN) at higher temperatures to seek the most suitable initiator system. At the end of all reactions the unreacted monomer content was reduced using post-polymerization technique; consequently, leading to increased monomer conversion and flm formation with improved properties. The kinetics of mini-emulsion polymerization showed that in all redox initiator systems (Fe2+ catalyst + EDTA chelating agent), the radials are produced at relatively low temperature with more effcient control of the reactor temperature. It was found that at 45°C TBHP/Fe2+/EDTA/SFS redox initiator system leads to 98% monomer conversion, a much higher rate than that of systems involved thermal initiators.http://jips.ippi.ac.ir/article_586_add86ae0a77205ebe3b672333793caaf.pdfminiemulsion polymerizationkineticalkyd-acrylic hybridredox initiatorsthermal initiators |
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DOAJ |
language |
fas |
format |
Article |
sources |
DOAJ |
author |
shirin Madadi ali akbar Yousefi elham Keshmirizadeh |
spellingShingle |
shirin Madadi ali akbar Yousefi elham Keshmirizadeh Kinetics of Waterborne Alkyd/Acrylic Hybrid Resin Free Radical Polymerization by Two Systems of Redox and Thermal Initiators علوم و تکنولوژی پلیمر miniemulsion polymerization kinetic alkyd-acrylic hybrid redox initiators thermal initiators |
author_facet |
shirin Madadi ali akbar Yousefi elham Keshmirizadeh |
author_sort |
shirin Madadi |
title |
Kinetics of Waterborne Alkyd/Acrylic Hybrid Resin Free Radical Polymerization by Two Systems of Redox and Thermal Initiators |
title_short |
Kinetics of Waterborne Alkyd/Acrylic Hybrid Resin Free Radical Polymerization by Two Systems of Redox and Thermal Initiators |
title_full |
Kinetics of Waterborne Alkyd/Acrylic Hybrid Resin Free Radical Polymerization by Two Systems of Redox and Thermal Initiators |
title_fullStr |
Kinetics of Waterborne Alkyd/Acrylic Hybrid Resin Free Radical Polymerization by Two Systems of Redox and Thermal Initiators |
title_full_unstemmed |
Kinetics of Waterborne Alkyd/Acrylic Hybrid Resin Free Radical Polymerization by Two Systems of Redox and Thermal Initiators |
title_sort |
kinetics of waterborne alkyd/acrylic hybrid resin free radical polymerization by two systems of redox and thermal initiators |
publisher |
Iran Polymer and Petrochemical Institute |
series |
علوم و تکنولوژی پلیمر |
issn |
1016-3255 2008-0883 |
publishDate |
2012-12-01 |
description |
Kinetics of radical polymerizations of waterborne alkyd/acrylic hybrid resin via batch mini-emulsion technique was studied using redox initiators (TBHP/Fe2+/EDTA/AsAc and TBHP/Fe2+/EDTA/SFS) at relatively low temperatures and thermal initiators (BPO, KPS and AIBN) at higher temperatures to seek the most suitable initiator system. At the end of all reactions the unreacted monomer content was reduced using post-polymerization technique; consequently, leading to increased monomer conversion and flm formation with improved properties. The kinetics of mini-emulsion polymerization showed that in all redox initiator systems (Fe2+ catalyst + EDTA chelating agent), the radials are produced at relatively low temperature with more effcient control of the reactor temperature. It was found that at 45°C TBHP/Fe2+/EDTA/SFS redox initiator system leads to 98% monomer conversion, a much higher rate than that of systems involved thermal initiators. |
topic |
miniemulsion polymerization kinetic alkyd-acrylic hybrid redox initiators thermal initiators |
url |
http://jips.ippi.ac.ir/article_586_add86ae0a77205ebe3b672333793caaf.pdf |
work_keys_str_mv |
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