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Colloid and Polymer Science

, Volume 297, Issue 9, pp 1245–1253 | Cite as

Sulfonate-functionalized polyacrylonitrile-based nanoparticles; synthesis, and conversion to pH-sensitive nanogels

  • Seyed Mehdi Molaei
  • Hossein Adelnia
  • Amir Mohammad Seif
  • Jaber Nasrollah GavganiEmail author
Short Communication
  • 33 Downloads

Abstract

The present paper reports the synthesis of polyacrylonitrile (PAN)-based nanoparticles through soap-free emulsion polymerization (SFEP). Employing different types of co-solvent, as well as ionic commoners, synthesis of pure PAN nanoparticles was unsuccessful. However, when vinyl acetate,or methyl (meth) acrylate was introduced (conc. > 10 mol%), crystallization of PAN was decreased and consequently stable nanoparticles in the size range of 80–250 nm were achieved. Such a co-polymerization not only produced clean and functionalized nanoparticles but also allowed addition of a cross-linker without sacrificing colloidal stability. As a model, the cross-linked poly(acrylonitrile-co-vinyl acetate) nanoparticles were hydrolyzed in alkaline media, which yielded poly(acrylic acid-co-vinyl alcohol) nanogels. The swelling measurement exhibited that the prepared nanogels have a pH-sensitive behavior.

Keywords

Soap-free emulsion polymerization Polyacrylonitrile pH-sensitive nanogels Electrostatic stabilization 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

396_2019_4543_MOESM1_ESM.docx (917 kb)
ESM 1 (DOCX 916 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Seyed Mehdi Molaei
    • 1
  • Hossein Adelnia
    • 2
  • Amir Mohammad Seif
    • 3
  • Jaber Nasrollah Gavgani
    • 4
    Email author
  1. 1.Department of Polymer EngineeringIslamic Azad University-Shahreza BranchShahrezaIran
  2. 2.Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneAustralia
  3. 3.Faculty of New Sciences and TechnologiesUniversity of TehranTehranIran
  4. 4.Department of Polymer Engineering and Color TechnologyAmirkabir University of TechnologyTehranIran

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