Superparamagnetic nanocomposites templated with pyrazole-containing diblock copolymers

Sanchita Biswas, Kevin D. Belfield, Ritesh K. Das, Siddhartha Ghosh, Arthur F. Hebard

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Monodisperse maghemite nanoparticles, templated in novel, well-defined pyrazole-containing norbornene-based block copolymers, provided a superparamagnetic nanocomposite with high saturation magnetization at room temperature under an applied magnetic field. The synthesis of the polymer nanocomposites and physical, morphological, and magnetic chracaterization of the nanocomposites are reported. Micelle-encapsulated superparamagnetic nanocomposites were generated for dispersal in aqueous medium. Their stability in water in the presence of a magnetic field was investigated as was their morphology and cell viability, strongly suggesting the potential of these superparamagnetic polymer-based nanocomposites in certain biomedical imaging and associated applications.

Original languageEnglish (US)
Pages (from-to)1211-1225
Number of pages15
JournalPolymers
Volume4
Issue number2
DOIs
StatePublished - 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Polymers and Plastics

Keywords

  • Block copolymer
  • Chelating ligand
  • Maghemite
  • Polymeric nanocomposite
  • ROMP

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