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A novel olive oil fatty acid-based amphiphilic random polyurethane: Micellization and phase transfer application.

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Title: A novel olive oil fatty acid-based amphiphilic random polyurethane: Micellization and phase transfer application.
Authors: Aghaghafari, Elham1 (AUTHOR), Zamanloo, Mohammad Reza1 (AUTHOR) mrzamanloo@uma.ac.ir, Omrani, Ismail2 (AUTHOR), Salarvand, Ehsan2 (AUTHOR)
Source: Colloids & Surfaces A: Physicochemical & Engineering Aspects. Dec2019, Vol. 583, pN.PAG-N.PAG. 1p.
Subjects: Polyurethanes, Olive oil, Nuclear magnetic resonance spectroscopy, Chemical structure, Ultraviolet-visible spectroscopy, Ethylene glycol, Oleic acid, Scanning electron microscopy
Abstract: A novel amphiphilic random polyurethane (APU) having both hydrophilic (Di(ethylene glycol), DEG) and hydrophobic/emulsifying (Oleic acid based dihydroxy fatty acid, DHA) constituents was synthesized and characterized for micellization utility. In order to prepare the dihydroxy acid, epoxidized methyl oleate was ring-opened in aqueous solution followed by alkali hydrolysis. The chemical structure of DHA and APU was ascertained by FT IR and 1H NMR spectroscopies. APU showed self-assembled structures in aqueous and nonpolar organic media by direct dissolution method. The morphologies of these nanoparticles were investigated by field emision scanning electron microscopy (FE SEM), atomic forec microscopy (AFM), dynamic light scattering (DLS), 1H NMR spectroscopy and water contact angle (WCA) measurement. The environment-dependent formation of APU micellar arrangements, that is, conformational inversion from micelle to reverse micelle-type structures in response to polarity of the solvent was investigated by 1H NMR spectroscopic technique. The ability of the nanoparticles for encapsulation and release of a hydrophobic guest molecule, Nile red, was characterized by UV–vis spectroscopy. [ABSTRACT FROM AUTHOR]
Copyright of Colloids & Surfaces A: Physicochemical & Engineering Aspects is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 141604856
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: A novel olive oil fatty acid-based amphiphilic random polyurethane: Micellization and phase transfer application.
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  Data: <searchLink fieldCode="AR" term="%22Aghaghafari%2C+Elham%22">Aghaghafari, Elham</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zamanloo%2C+Mohammad+Reza%22">Zamanloo, Mohammad Reza</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mrzamanloo@uma.ac.ir</i><br /><searchLink fieldCode="AR" term="%22Omrani%2C+Ismail%22">Omrani, Ismail</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Salarvand%2C+Ehsan%22">Salarvand, Ehsan</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="DE" term="%22Polyurethanes%22">Polyurethanes</searchLink><br /><searchLink fieldCode="DE" term="%22Olive+oil%22">Olive oil</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+magnetic+resonance+spectroscopy%22">Nuclear magnetic resonance spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+structure%22">Chemical structure</searchLink><br /><searchLink fieldCode="DE" term="%22Ultraviolet-visible+spectroscopy%22">Ultraviolet-visible spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Ethylene+glycol%22">Ethylene glycol</searchLink><br /><searchLink fieldCode="DE" term="%22Oleic+acid%22">Oleic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopy%22">Scanning electron microscopy</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: A novel amphiphilic random polyurethane (APU) having both hydrophilic (Di(ethylene glycol), DEG) and hydrophobic/emulsifying (Oleic acid based dihydroxy fatty acid, DHA) constituents was synthesized and characterized for micellization utility. In order to prepare the dihydroxy acid, epoxidized methyl oleate was ring-opened in aqueous solution followed by alkali hydrolysis. The chemical structure of DHA and APU was ascertained by FT IR and 1H NMR spectroscopies. APU showed self-assembled structures in aqueous and nonpolar organic media by direct dissolution method. The morphologies of these nanoparticles were investigated by field emision scanning electron microscopy (FE SEM), atomic forec microscopy (AFM), dynamic light scattering (DLS), 1H NMR spectroscopy and water contact angle (WCA) measurement. The environment-dependent formation of APU micellar arrangements, that is, conformational inversion from micelle to reverse micelle-type structures in response to polarity of the solvent was investigated by 1H NMR spectroscopic technique. The ability of the nanoparticles for encapsulation and release of a hydrophobic guest molecule, Nile red, was characterized by UV–vis spectroscopy. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Colloids & Surfaces A: Physicochemical & Engineering Aspects is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.colsurfa.2019.123951
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Polyurethanes
        Type: general
      – SubjectFull: Olive oil
        Type: general
      – SubjectFull: Nuclear magnetic resonance spectroscopy
        Type: general
      – SubjectFull: Chemical structure
        Type: general
      – SubjectFull: Ultraviolet-visible spectroscopy
        Type: general
      – SubjectFull: Ethylene glycol
        Type: general
      – SubjectFull: Oleic acid
        Type: general
      – SubjectFull: Scanning electron microscopy
        Type: general
    Titles:
      – TitleFull: A novel olive oil fatty acid-based amphiphilic random polyurethane: Micellization and phase transfer application.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Aghaghafari, Elham
      – PersonEntity:
          Name:
            NameFull: Zamanloo, Mohammad Reza
      – PersonEntity:
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            NameFull: Omrani, Ismail
      – PersonEntity:
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            NameFull: Salarvand, Ehsan
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          Dates:
            – D: 20
              M: 12
              Text: Dec2019
              Type: published
              Y: 2019
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              Value: 09277757
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              Value: 583
          Titles:
            – TitleFull: Colloids & Surfaces A: Physicochemical & Engineering Aspects
              Type: main
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