On polystyrene–block polyisoprene–block polystyrene filled with carbon-coated Ni nanoparticles

Yunlong Jin, Shah Valloppilly, Dorina Magdalena Chipara, Ralph Skomski, Mircea Chipara, Wenyong Zhang, David J. Sellmyer

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

The manuscript focuses on the dispersion of magnetic nanoparticles within self-assembling block copolymers, on the preferential localization of nanoparticles and on the effect of their concentration on the magnetic properties of the nanocomposites and on the self-assembly features of the matrix. Carbon-coated nickel nanoparticles dispersed within polystyrene–block polyisoprene–block polystyrene have been investigated by Raman, X-ray, SQUID, differential scanning calorimetry, and electron microscopy. The effect of nanofiller on the self-assembly features of the block copolymer is reported. Preferential localization of nanofiller within the soft phase was noticed below 20 wt% nanofiller. Higher loadings with nanoparticles showed an uniform distribution of nanofiller within the block copolymer, consistent with the destruction of self-assembly. The effect of nanoparticles’ concentration on blocking temperature is discussed.

Original languageEnglish (US)
Pages (from-to)2452-2459
Number of pages8
JournalJournal of Materials Science
Volume52
Issue number5
DOIs
StatePublished - Mar 1 2017

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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