Magnetic polyurea nano-capsules synthesized via interfacial polymerization in inverse nano-emulsion

Suzana Natour; Anat Levi-Zada; Raed Abu-Reziq

doi:10.3390/molecules24142663

Magnetic polyurea nano-capsules synthesized via interfacial polymerization in inverse nano-emulsion

Suzana Natour, Anat Levi-Zada, Raed Abu-Reziq^*

^*Corresponding author for this work

Institute of Chemistry

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

13 Scopus citations

Abstract

Polyurea (PU) nano-capsules have received voluminous interest in various fields due to their biocompatibility, high mechanical properties, and surface functionality. By incorporating magnetic nanoparticle (MNPs) into the polyurea system, the attributes of both PU and MNPs can be combined. In this work, we describe a facile and quick method for preparing magnetic polyurea nano-capsules. Encapsulation of ionic liquid-modified magnetite nanoparticles (MNPs), with polyurea nano-capsules (PU NCs) having an average size of 5–20 nm was carried out through interfacial polycondensation between amine and isocyanate monomers in inverse nano-emulsion (water-in-oil). The desired magnetic PU NCs were obtained utilizing toluene and triple-distilled water as continuous and dispersed phases respectively, polymeric non-ionic surfactant cetyl polyethyleneglycol/polypropyleneglycol-10/1 dimethicone (ABIL EM 90), diethylenetriamine, ethylenediamine diphenylmethane-4,4⁰-diisocyanate, and various percentages of the ionic liquid-modified MNPs. High loading of the ionic liquid-modified MNPs up to 11 wt% with respect to the dispersed aqueous phase was encapsulated. The magnetic PU NCs were probed using various analytical instruments including electron microscopy, infrared spectroscopy, X-ray diffraction, and nuclear magnetic spectroscopy. This unequivocally manifested the successful synthesis of core-shell polyurea nano-capsules even without utilizing osmotic pressure agents, and confirmed the presence of high loading of MNPs in the core.

Original language	American English
Article number	2663
Journal	Molecules
Volume	24
Issue number	14
DOIs	https://doi.org/10.3390/molecules24142663
State	Published - 23 Jul 2019

Bibliographical note

Funding Information:
Funding: This research was funded by the Israel Ministry of Agriculture, [grant number 131-1595].

Funding Information:
Acknowledgments: This work was supported by the Chief Scientist, the Israel Ministry of Agriculture grant # 131-1595. We are also grateful to the Ministry of Science, Technology, and Space for the fellowship of Suzana Natour. We thank Inna Popov and Vladimir Uvarov for helping with the TEM and XRD analysis. Suzana Natour thanks Rajashekharayya Sanguramath for productive discussions.

Publisher Copyright:
© 2019 by the authors.

Keywords

Composite nanomaterials
Interfacial polymerization
Magnetic nanoparticles
Nano-emulsions
Polyurea nano-capsules

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10.3390/molecules24142663

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title = "Magnetic polyurea nano-capsules synthesized via interfacial polymerization in inverse nano-emulsion",

abstract = "Polyurea (PU) nano-capsules have received voluminous interest in various fields due to their biocompatibility, high mechanical properties, and surface functionality. By incorporating magnetic nanoparticle (MNPs) into the polyurea system, the attributes of both PU and MNPs can be combined. In this work, we describe a facile and quick method for preparing magnetic polyurea nano-capsules. Encapsulation of ionic liquid-modified magnetite nanoparticles (MNPs), with polyurea nano-capsules (PU NCs) having an average size of 5–20 nm was carried out through interfacial polycondensation between amine and isocyanate monomers in inverse nano-emulsion (water-in-oil). The desired magnetic PU NCs were obtained utilizing toluene and triple-distilled water as continuous and dispersed phases respectively, polymeric non-ionic surfactant cetyl polyethyleneglycol/polypropyleneglycol-10/1 dimethicone (ABIL EM 90), diethylenetriamine, ethylenediamine diphenylmethane-4,40-diisocyanate, and various percentages of the ionic liquid-modified MNPs. High loading of the ionic liquid-modified MNPs up to 11 wt% with respect to the dispersed aqueous phase was encapsulated. The magnetic PU NCs were probed using various analytical instruments including electron microscopy, infrared spectroscopy, X-ray diffraction, and nuclear magnetic spectroscopy. This unequivocally manifested the successful synthesis of core-shell polyurea nano-capsules even without utilizing osmotic pressure agents, and confirmed the presence of high loading of MNPs in the core.",

keywords = "Composite nanomaterials, Interfacial polymerization, Magnetic nanoparticles, Nano-emulsions, Polyurea nano-capsules",

author = "Suzana Natour and Anat Levi-Zada and Raed Abu-Reziq",

note = "Funding Information: Funding: This research was funded by the Israel Ministry of Agriculture, [grant number 131-1595]. Funding Information: Acknowledgments: This work was supported by the Chief Scientist, the Israel Ministry of Agriculture grant # 131-1595. We are also grateful to the Ministry of Science, Technology, and Space for the fellowship of Suzana Natour. We thank Inna Popov and Vladimir Uvarov for helping with the TEM and XRD analysis. Suzana Natour thanks Rajashekharayya Sanguramath for productive discussions. Publisher Copyright: {\textcopyright} 2019 by the authors.",

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doi = "10.3390/molecules24142663",

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AU - Levi-Zada, Anat

AU - Abu-Reziq, Raed

N1 - Funding Information: Funding: This research was funded by the Israel Ministry of Agriculture, [grant number 131-1595]. Funding Information: Acknowledgments: This work was supported by the Chief Scientist, the Israel Ministry of Agriculture grant # 131-1595. We are also grateful to the Ministry of Science, Technology, and Space for the fellowship of Suzana Natour. We thank Inna Popov and Vladimir Uvarov for helping with the TEM and XRD analysis. Suzana Natour thanks Rajashekharayya Sanguramath for productive discussions. Publisher Copyright: © 2019 by the authors.

PY - 2019/7/23

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N2 - Polyurea (PU) nano-capsules have received voluminous interest in various fields due to their biocompatibility, high mechanical properties, and surface functionality. By incorporating magnetic nanoparticle (MNPs) into the polyurea system, the attributes of both PU and MNPs can be combined. In this work, we describe a facile and quick method for preparing magnetic polyurea nano-capsules. Encapsulation of ionic liquid-modified magnetite nanoparticles (MNPs), with polyurea nano-capsules (PU NCs) having an average size of 5–20 nm was carried out through interfacial polycondensation between amine and isocyanate monomers in inverse nano-emulsion (water-in-oil). The desired magnetic PU NCs were obtained utilizing toluene and triple-distilled water as continuous and dispersed phases respectively, polymeric non-ionic surfactant cetyl polyethyleneglycol/polypropyleneglycol-10/1 dimethicone (ABIL EM 90), diethylenetriamine, ethylenediamine diphenylmethane-4,40-diisocyanate, and various percentages of the ionic liquid-modified MNPs. High loading of the ionic liquid-modified MNPs up to 11 wt% with respect to the dispersed aqueous phase was encapsulated. The magnetic PU NCs were probed using various analytical instruments including electron microscopy, infrared spectroscopy, X-ray diffraction, and nuclear magnetic spectroscopy. This unequivocally manifested the successful synthesis of core-shell polyurea nano-capsules even without utilizing osmotic pressure agents, and confirmed the presence of high loading of MNPs in the core.

AB - Polyurea (PU) nano-capsules have received voluminous interest in various fields due to their biocompatibility, high mechanical properties, and surface functionality. By incorporating magnetic nanoparticle (MNPs) into the polyurea system, the attributes of both PU and MNPs can be combined. In this work, we describe a facile and quick method for preparing magnetic polyurea nano-capsules. Encapsulation of ionic liquid-modified magnetite nanoparticles (MNPs), with polyurea nano-capsules (PU NCs) having an average size of 5–20 nm was carried out through interfacial polycondensation between amine and isocyanate monomers in inverse nano-emulsion (water-in-oil). The desired magnetic PU NCs were obtained utilizing toluene and triple-distilled water as continuous and dispersed phases respectively, polymeric non-ionic surfactant cetyl polyethyleneglycol/polypropyleneglycol-10/1 dimethicone (ABIL EM 90), diethylenetriamine, ethylenediamine diphenylmethane-4,40-diisocyanate, and various percentages of the ionic liquid-modified MNPs. High loading of the ionic liquid-modified MNPs up to 11 wt% with respect to the dispersed aqueous phase was encapsulated. The magnetic PU NCs were probed using various analytical instruments including electron microscopy, infrared spectroscopy, X-ray diffraction, and nuclear magnetic spectroscopy. This unequivocally manifested the successful synthesis of core-shell polyurea nano-capsules even without utilizing osmotic pressure agents, and confirmed the presence of high loading of MNPs in the core.

KW - Composite nanomaterials

KW - Interfacial polymerization

KW - Magnetic nanoparticles

KW - Nano-emulsions

KW - Polyurea nano-capsules

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DO - 10.3390/molecules24142663

M3 - Article

C2 - 31340486

AN - SCOPUS:85069681538

SN - 1420-3049

VL - 24

JO - Molecules

JF - Molecules

IS - 14

M1 - 2663

ER -

Magnetic polyurea nano-capsules synthesized via interfacial polymerization in inverse nano-emulsion

Abstract

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Keywords

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