Nanorice and nanospears from polymer nanospheres

Devesh Srivastava, Ilsoon Lee

Research output: Contribution to journalArticle

  • 15 Citations

Abstract

The shaping of nanoscale structures using ordered nanopored membranes and a simple solvent-aided nanoinjection molding process of polymer nanospheres was investigated. The commercially available alumina membranes was used as templates and polystyrenes (PS) nanospheres for the fabrication of controlled aspect ratio and terminal-contour-controlled nanoparticles. The heat treatments allowed the nanoparticles to coalescence and wet from the alumina nanopore walls and form nanoparticles with a controlled aspect ratio and an interesting terminal curvature. The size of the nanospheres was observed to be in between the large and the small pores so that the nanospheres are trapped only in the large pores. The remaining polymer particles were filtered using a centrifuge and washed several times in deionized (DI) water, to remove any residual NaOH. By exploiting non-uniform heating and resulting or capillary forces of nanospheres filled inside the cylindrical nanopores of membranes a novel nanostructured nanorice and nanospear was obtained.

LanguageEnglish (US)
Pages2471-2475
Number of pages5
JournalAdvanced Materials
Volume18
Issue number18
DOIs
StatePublished - Sep 18 2006

Profile

Nanospheres
Polymers
Nanopores
Aluminum Oxide
Nanoparticles
Membranes
Aspect ratio
Alumina
Deionized water
Polystyrenes
Centrifuges
Coalescence
Molding
Heat treatment
Heating
Fabrication

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Nanorice and nanospears from polymer nanospheres. / Srivastava, Devesh; Lee, Ilsoon.

In: Advanced Materials, Vol. 18, No. 18, 18.09.2006, p. 2471-2475.

Research output: Contribution to journalArticle

Srivastava D, Lee I. Nanorice and nanospears from polymer nanospheres. Advanced Materials. 2006 Sep 18;18(18):2471-2475. Available from, DOI: 10.1002/adma.200601123
Srivastava, Devesh ; Lee, Ilsoon. / Nanorice and nanospears from polymer nanospheres. In: Advanced Materials. 2006 ; Vol. 18, No. 18. pp. 2471-2475
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