Amphiphilic amylose-g-poly(meth)acrylate copolymers through "click" onto grafting method

Biomacromolecules. 2011 Feb 14;12(2):388-98. doi: 10.1021/bm101143q. Epub 2010 Dec 30.

Abstract

Periodate oxidation and subsequent reductive amination with propargylamine was adopted for the controlled functionalization of amylose with alkyne groups, whereas ATRP polymerization was exploited to obtain end-(α)- or end-(ω)-azide functionalized poly(meth)acrylates to be used as "click" reagents in Cu(I) catalyzed azide-alkyne [3 + 2] dipolar cycloaddition. Amylose was effectively grafted with poly(n-butyl acrylate), poly(n-butyl methacrylate), poly(n-hexyl methacrylate), and poly(dimethylaminoethyl methacrylate) with this strategy. Their structure and composition were confirmed by FT-IR, NMR spectroscopies, and thermogravimetric analysis (TGA). Dynamic and static light scattering analyses, as well as TEM microscopy showed that the most amphiphilic among these hybrid graft copolymers self-assembled in water, yielding nanoparticles with ca. 30 nm diameter.

MeSH terms

  • Acrylates / chemistry*
  • Amylose / chemistry*
  • Methacrylates / chemistry*
  • Molecular Structure
  • Nanoparticles / chemistry
  • Nylons
  • Particle Size
  • Polymers / chemistry*
  • Polymethacrylic Acids / chemistry*
  • Surface Properties

Substances

  • Acrylates
  • Methacrylates
  • Nylons
  • Polymers
  • Polymethacrylic Acids
  • poly(2-(dimethylamino)ethyl methacrylate)
  • poly(n-butyl acrylate)
  • polybutyl methacrylate
  • Amylose