Rheokinetics of crosslinkable poly(vinyl acetate) emulsion and diethylene triamine
The study of the rheological behavior associated with the crosslinking process of epoxy‐functionalized poly(vinyl acetate) emulsion and diethylene triamine showed that the system was reactive and very sensitive to temperature. Gelation times and gelation temperatures were determined from the abrupt...
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| Veröffentlicht in: | Journal of applied polymer science 2012-11, Vol.126 (S2), p.E396-E402 |
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| container_issue | S2 |
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| container_title | Journal of applied polymer science |
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| creator | Lu, J. Easteal, A. J. Bhattacharyya, D. Edmonds, N. R. Bolt, C. |
| description | The study of the rheological behavior associated with the crosslinking process of epoxy‐functionalized poly(vinyl acetate) emulsion and diethylene triamine showed that the system was reactive and very sensitive to temperature. Gelation times and gelation temperatures were determined from the abrupt changes of the viscoelastic material functions G′, G″, and η* in time sweeps and temperature sweeps. Isothermal kinetics models of the crosslinking process based on the isoconversional method predicted the relationship of curing rate, degree of conversion, reaction nature and kinetic parameters, and temperature. The temperature dependence of the rate constants was found to be described by the Arrhenius relationship. The temperature dependencies of G′, G″, and η* were found to be frequency independent at the gel point, Tgel, providing a fingerprint for determining Tgel of the crosslinkable systems. The variation of G′ and G″ with frequency followed the power laws showing G′ = A′ωb and G″ = A″ωc through the frequency sweep. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 |
| doi_str_mv | 10.1002/app.36934 |
| format | Article |
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The temperature dependencies of G′, G″, and η* were found to be frequency independent at the gel point, Tgel, providing a fingerprint for determining Tgel of the crosslinkable systems. The variation of G′ and G″ with frequency followed the power laws showing G′ = A′ωb and G″ = A″ωc through the frequency sweep. © 2012 Wiley Periodicals, Inc. 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J.</creatorcontrib><creatorcontrib>Bhattacharyya, D.</creatorcontrib><creatorcontrib>Edmonds, N. R.</creatorcontrib><creatorcontrib>Bolt, C.</creatorcontrib><title>Rheokinetics of crosslinkable poly(vinyl acetate) emulsion and diethylene triamine</title><title>Journal of applied polymer science</title><addtitle>J. Appl. Polym. Sci</addtitle><description>The study of the rheological behavior associated with the crosslinking process of epoxy‐functionalized poly(vinyl acetate) emulsion and diethylene triamine showed that the system was reactive and very sensitive to temperature. Gelation times and gelation temperatures were determined from the abrupt changes of the viscoelastic material functions G′, G″, and η* in time sweeps and temperature sweeps. Isothermal kinetics models of the crosslinking process based on the isoconversional method predicted the relationship of curing rate, degree of conversion, reaction nature and kinetic parameters, and temperature. The temperature dependence of the rate constants was found to be described by the Arrhenius relationship. The temperature dependencies of G′, G″, and η* were found to be frequency independent at the gel point, Tgel, providing a fingerprint for determining Tgel of the crosslinkable systems. The variation of G′ and G″ with frequency followed the power laws showing G′ = A′ωb and G″ = A″ωc through the frequency sweep. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012</description><subject>Acetates</subject><subject>adhesives</subject><subject>Conversion</subject><subject>Crosslinking</subject><subject>Diethylene triamine</subject><subject>emulsion polymerization</subject><subject>Emulsions</subject><subject>Gelation</subject><subject>Kinetics</subject><subject>Materials science</subject><subject>Mathematical models</subject><subject>Polymers</subject><subject>Reaction kinetics</subject><subject>rheology</subject><subject>Temperature</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp1kMtOwzAQRS0EEuWx4A8isYFFwI7fS4SgIFU8Coil5TpjYeomIU6B_D2BAgskVrOYc69mDkJ7BB8RjItj2zRHVGjK1tCIYC1zJgq1jkbDjuRKa76JtlJ6xpgQjsUITadPUM9DBV1wKat95to6pRiquZ1FyJo69gevoepjZh10toPDDBbLmEJdZbYqszJA99RHqCDr2mAXQ9MO2vA2Jtj9ntvo4fzs_vQin1yPL09PJrmjQrEchKLOW1bymcJQcuk4I8IK6UonPdeeeqtmyoLyhSdaaqKAMwlCksIPH9JtdLDqbdr6ZQmpM4uQHMRoK6iXyRBGtSyk5mxA9_-gz_WyrYbrBopILjATn9Thivpy0II3TRsWtu0NwebTrhnsmi-7A3u8Yt9ChP5_0Jzc3Pwk8lUipA7efxO2nRshqeTm8WpsphN6d0fZrbmiHzOPiyU</recordid><startdate>20121125</startdate><enddate>20121125</enddate><creator>Lu, J.</creator><creator>Easteal, A. 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Sci</addtitle><date>2012-11-25</date><risdate>2012</risdate><volume>126</volume><issue>S2</issue><spage>E396</spage><epage>E402</epage><pages>E396-E402</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><coden>JAPNAB</coden><abstract>The study of the rheological behavior associated with the crosslinking process of epoxy‐functionalized poly(vinyl acetate) emulsion and diethylene triamine showed that the system was reactive and very sensitive to temperature. Gelation times and gelation temperatures were determined from the abrupt changes of the viscoelastic material functions G′, G″, and η* in time sweeps and temperature sweeps. Isothermal kinetics models of the crosslinking process based on the isoconversional method predicted the relationship of curing rate, degree of conversion, reaction nature and kinetic parameters, and temperature. The temperature dependence of the rate constants was found to be described by the Arrhenius relationship. The temperature dependencies of G′, G″, and η* were found to be frequency independent at the gel point, Tgel, providing a fingerprint for determining Tgel of the crosslinkable systems. The variation of G′ and G″ with frequency followed the power laws showing G′ = A′ωb and G″ = A″ωc through the frequency sweep. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/app.36934</doi><tpages>7</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Acetates adhesives Conversion Crosslinking Diethylene triamine emulsion polymerization Emulsions Gelation Kinetics Materials science Mathematical models Polymers Reaction kinetics rheology Temperature |
| title | Rheokinetics of crosslinkable poly(vinyl acetate) emulsion and diethylene triamine |
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