Self-assembly and characterization of polyaniline and sulfonated polystyrene multilayer-coated colloidal particles and hollow shells

Mi Kyoung Park, Ken Onishi, Jason Locklin, Frank Caruso, Rigoberto C. Advincula

Research output: Contribution to journalArticle

189 Citations (Scopus)

Abstract

Conductive core-shell particles were prepared by the deposition of polyaniline (PANI) and poly(sodium 4-styrenesulfonate) (PSS) multilayers onto polystyrene (PS) colloidal particles via the alternate electrostatic layer-by-layer (LbL) assembly technique. PSS was used as a polymeric counterion for multilayer formation as well as a stabilizer and codopant for PANI. Electrophoresis, FT-IR spectroscopy, and transmission electron microscopy (TEM) confirmed the regular growth of PSS/PANI multilayers on PS colloidal particles. It was found that the PSS/PANI-coated particle is oxidatively more stable due to stabilization of the partially oxidized emeraldine salt by PSS. The conductivity of (PSS/PANI)5-coated PS particles was 0.003 S/cm and increased to 0.1 S/cm after additional dopant exposure with HCl vapor. Furthermore, hollow shells made up of PSS/PANI layers were produced by dissolution of the PS core from PSS/PANI-coated particles. Cyclic voltammetry (CV) showed that PSS/PANI multilayers maintained their oxidative stability and electrochemical properties after removal of the core.

Original languageEnglish
Pages (from-to)8550-8554
Number of pages5
JournalLangmuir
Volume19
Issue number20
DOIs
Publication statusPublished - 2003 Sep 30
Externally publishedYes

Fingerprint

Polystyrenes
Polyaniline
Self assembly
self assembly
hollow
polystyrene
Multilayers
electrophoresis
Infrared transmission
polyaniline
dissolving
assembly
stabilization
Electrophoresis
Electrochemical properties
sodium
vapors
electrostatics
Cyclic voltammetry
salts

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Self-assembly and characterization of polyaniline and sulfonated polystyrene multilayer-coated colloidal particles and hollow shells. / Park, Mi Kyoung; Onishi, Ken; Locklin, Jason; Caruso, Frank; Advincula, Rigoberto C.

In: Langmuir, Vol. 19, No. 20, 30.09.2003, p. 8550-8554.

Research output: Contribution to journalArticle

Park, Mi Kyoung ; Onishi, Ken ; Locklin, Jason ; Caruso, Frank ; Advincula, Rigoberto C. / Self-assembly and characterization of polyaniline and sulfonated polystyrene multilayer-coated colloidal particles and hollow shells. In: Langmuir. 2003 ; Vol. 19, No. 20. pp. 8550-8554.
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