Encapsulation of ionic liquid BMIm[PF6] within polyurea microspheres

Ester Weiss; Diana Gertopski; Maneesh Kumar Gupta; Raed Abu-Reziq

doi:10.1016/j.reactfunctpolym.2015.09.003

Encapsulation of ionic liquid BMIm[PF₆] within polyurea microspheres

Ester Weiss, Diana Gertopski, Maneesh Kumar Gupta, Raed Abu-Reziq^*

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

The encapsulation of 1-butyl-3-methylimidazolium hexafluorophosphate (BMIm[PF₆]) in polyurea microspheres is demonstrated. This method is based on the encapsulation of ionic liquid within a polyurea shell by emulsification and interfacial polymerization of amine and isocyanate monomers. Emulsification of BMIm[PF₆] was performed in water or oil, enabling formation of two different BMIm[PF₆] polyurea microcapsules with different chemical features. While the BMIm[PF₆]-in-water emulsion enables the formation of BMIm[PF₆] polyurea microcapsules with regular aliphatic diamines, the BMIm[PF₆]-in-oil emulsion requires the utilization of a specific diamine functionalized with ionic liquid groups. The microcapsules were characterized by scanning electron microscopy, thermal gravimetric analysis, infrared and solid NMR.

Original language	English
Article number	3560
Pages (from-to)	32-38
Number of pages	7
Journal	Reactive and Functional Polymers
Volume	96
DOIs	https://doi.org/10.1016/j.reactfunctpolym.2015.09.003
State	Published - 1 Nov 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V.

Keywords

Encapsulation
Ionic liquid
Ionic liquid-in-oil emulsion
Ionic liquid-in-water emulsion
Polyurea microcapsules

Access to Document

10.1016/j.reactfunctpolym.2015.09.003

Cite this

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title = "Encapsulation of ionic liquid BMIm[PF6] within polyurea microspheres",

abstract = "The encapsulation of 1-butyl-3-methylimidazolium hexafluorophosphate (BMIm[PF6]) in polyurea microspheres is demonstrated. This method is based on the encapsulation of ionic liquid within a polyurea shell by emulsification and interfacial polymerization of amine and isocyanate monomers. Emulsification of BMIm[PF6] was performed in water or oil, enabling formation of two different BMIm[PF6] polyurea microcapsules with different chemical features. While the BMIm[PF6]-in-water emulsion enables the formation of BMIm[PF6] polyurea microcapsules with regular aliphatic diamines, the BMIm[PF6]-in-oil emulsion requires the utilization of a specific diamine functionalized with ionic liquid groups. The microcapsules were characterized by scanning electron microscopy, thermal gravimetric analysis, infrared and solid NMR.",

keywords = "Encapsulation, Ionic liquid, Ionic liquid-in-oil emulsion, Ionic liquid-in-water emulsion, Polyurea microcapsules",

author = "Ester Weiss and Diana Gertopski and Gupta, {Maneesh Kumar} and Raed Abu-Reziq",

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AU - Gupta, Maneesh Kumar

AU - Abu-Reziq, Raed

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N2 - The encapsulation of 1-butyl-3-methylimidazolium hexafluorophosphate (BMIm[PF6]) in polyurea microspheres is demonstrated. This method is based on the encapsulation of ionic liquid within a polyurea shell by emulsification and interfacial polymerization of amine and isocyanate monomers. Emulsification of BMIm[PF6] was performed in water or oil, enabling formation of two different BMIm[PF6] polyurea microcapsules with different chemical features. While the BMIm[PF6]-in-water emulsion enables the formation of BMIm[PF6] polyurea microcapsules with regular aliphatic diamines, the BMIm[PF6]-in-oil emulsion requires the utilization of a specific diamine functionalized with ionic liquid groups. The microcapsules were characterized by scanning electron microscopy, thermal gravimetric analysis, infrared and solid NMR.

AB - The encapsulation of 1-butyl-3-methylimidazolium hexafluorophosphate (BMIm[PF6]) in polyurea microspheres is demonstrated. This method is based on the encapsulation of ionic liquid within a polyurea shell by emulsification and interfacial polymerization of amine and isocyanate monomers. Emulsification of BMIm[PF6] was performed in water or oil, enabling formation of two different BMIm[PF6] polyurea microcapsules with different chemical features. While the BMIm[PF6]-in-water emulsion enables the formation of BMIm[PF6] polyurea microcapsules with regular aliphatic diamines, the BMIm[PF6]-in-oil emulsion requires the utilization of a specific diamine functionalized with ionic liquid groups. The microcapsules were characterized by scanning electron microscopy, thermal gravimetric analysis, infrared and solid NMR.

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KW - Ionic liquid

KW - Ionic liquid-in-oil emulsion

KW - Ionic liquid-in-water emulsion

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