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231224s2011 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/la104830u
|2 doi
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|a eng
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| 100 |
1 |
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|a Lopez, Aitziber
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Waterborne polyurethane-acrylic hybrid nanoparticles by miniemulsion polymerization
|b applications in pressure-sensitive adhesives
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 13.07.2011
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|a Date Revised 30.03.2011
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Waterborne polyurethane-acrylic hybrid nanoparticles for application as pressure-sensitive adhesives (PSAs) were prepared by one-step miniemulsion polymerization. The addition of polyurethane to a standard waterborne acrylic formulation results in a large increase in the cohesive strength and hence a much higher shear holding time (greater than seven weeks at room temperature), which is a very desirable characteristic for PSAs. However, with the increase in cohesion, there is a decrease in the relative viscous component, and hence there is a decrease in the tack energy. The presence of a small concentration of methyl methacrylate (MMA) in the acrylic copolymer led to phase separation within the particles and created a hemispherical morphology. The tack energy was particularly low in the hybrid containing MMA because of the effects of lower energy dissipation and greater cross-linking. These results highlight the great sensitivity of the viscoelastic and adhesive properties to the details of the polymer network architecture and hence to the precise composition and synthesis conditions
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|a Journal Article
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|a Degrandi-Contraires, Elise
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Canetta, Elisabetta
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Creton, Costantino
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Keddie, Joseph L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Asua, José M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 27(2011), 7 vom: 05. Apr., Seite 3878-88
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|g volume:27
|g year:2011
|g number:7
|g day:05
|g month:04
|g pages:3878-88
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|u http://dx.doi.org/10.1021/la104830u
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