In situ polymerization of conducting polyaniline in bicontinuous cubic phase of lyotropic liquid crystal

P. S. Khiew, Shahidan Radiman, N. M. Huang, C. S. Kan, Md Soot Ahmad

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The polymerization of conducting polyaniline (PANI) in lyotropic bicontinuous cubic phase consisted of poly(oxyethylene) 10 nonyl phenol ether (NP10), octane and water have been explored. The rheology measurements have been carried out in order to assess the phase behavior of the pure lyotropic mesophases, doped with reactant and after polymerization. It was found that the phase structure did not rupture upon polymerization as the complex modulus of the system after polymerization is maintained in the cubic phase region. The results of small-angle X-ray scattering (SAXS) also showed that the microstructure of the mesophase did not disrupt after the polymerization process and indicate the direct templating of polyaniline in the cubic lyotropic mesophase. The synthesized PANI particles have been characterized by energy filter transmission electron microscopy (EFTEM), UV-vis absorption and Fourier transform infrared (FTIR) spectroscopy. The spectroscopy studies revealed the presence of emeraldine salts in the polymer, and thus confirms that the prepared polyaniline is in conducting form. The microscopy results showed that the resulting polymers have spherical shape with mesopores structure, fairly monodispersed and in the size range of 100-300 nm, depending on the reactants concentration.

Original languageEnglish
Pages (from-to)35-40
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume247
Issue number1-3
DOIs
Publication statusPublished - 21 Oct 2004

Fingerprint

Liquid Crystals
Polyaniline
Liquid crystals
polymerization
liquid crystals
Polymerization
conduction
Polymers
polymers
octanes
Phase behavior
Phase structure
X ray scattering
Rheology
rheology
Ether
phenols
Phenols
Fourier transform infrared spectroscopy
Ethers

Keywords

  • Electron microscopy
  • Lyotropic cubic phase
  • Nanostructures
  • Polymers
  • Surfactant assemblies

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

In situ polymerization of conducting polyaniline in bicontinuous cubic phase of lyotropic liquid crystal. / Khiew, P. S.; Radiman, Shahidan; Huang, N. M.; Kan, C. S.; Ahmad, Md Soot.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 247, No. 1-3, 21.10.2004, p. 35-40.

Research output: Contribution to journalArticle

@article{7dac47ae36bd48a2b313e3a31d894cad,
title = "In situ polymerization of conducting polyaniline in bicontinuous cubic phase of lyotropic liquid crystal",
abstract = "The polymerization of conducting polyaniline (PANI) in lyotropic bicontinuous cubic phase consisted of poly(oxyethylene) 10 nonyl phenol ether (NP10), octane and water have been explored. The rheology measurements have been carried out in order to assess the phase behavior of the pure lyotropic mesophases, doped with reactant and after polymerization. It was found that the phase structure did not rupture upon polymerization as the complex modulus of the system after polymerization is maintained in the cubic phase region. The results of small-angle X-ray scattering (SAXS) also showed that the microstructure of the mesophase did not disrupt after the polymerization process and indicate the direct templating of polyaniline in the cubic lyotropic mesophase. The synthesized PANI particles have been characterized by energy filter transmission electron microscopy (EFTEM), UV-vis absorption and Fourier transform infrared (FTIR) spectroscopy. The spectroscopy studies revealed the presence of emeraldine salts in the polymer, and thus confirms that the prepared polyaniline is in conducting form. The microscopy results showed that the resulting polymers have spherical shape with mesopores structure, fairly monodispersed and in the size range of 100-300 nm, depending on the reactants concentration.",
keywords = "Electron microscopy, Lyotropic cubic phase, Nanostructures, Polymers, Surfactant assemblies",
author = "Khiew, {P. S.} and Shahidan Radiman and Huang, {N. M.} and Kan, {C. S.} and Ahmad, {Md Soot}",
year = "2004",
month = "10",
day = "21",
doi = "10.1016/j.colsurfa.2004.08.021",
language = "English",
volume = "247",
pages = "35--40",
journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",
issn = "0927-7757",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - In situ polymerization of conducting polyaniline in bicontinuous cubic phase of lyotropic liquid crystal

AU - Khiew, P. S.

AU - Radiman, Shahidan

AU - Huang, N. M.

AU - Kan, C. S.

AU - Ahmad, Md Soot

PY - 2004/10/21

Y1 - 2004/10/21

N2 - The polymerization of conducting polyaniline (PANI) in lyotropic bicontinuous cubic phase consisted of poly(oxyethylene) 10 nonyl phenol ether (NP10), octane and water have been explored. The rheology measurements have been carried out in order to assess the phase behavior of the pure lyotropic mesophases, doped with reactant and after polymerization. It was found that the phase structure did not rupture upon polymerization as the complex modulus of the system after polymerization is maintained in the cubic phase region. The results of small-angle X-ray scattering (SAXS) also showed that the microstructure of the mesophase did not disrupt after the polymerization process and indicate the direct templating of polyaniline in the cubic lyotropic mesophase. The synthesized PANI particles have been characterized by energy filter transmission electron microscopy (EFTEM), UV-vis absorption and Fourier transform infrared (FTIR) spectroscopy. The spectroscopy studies revealed the presence of emeraldine salts in the polymer, and thus confirms that the prepared polyaniline is in conducting form. The microscopy results showed that the resulting polymers have spherical shape with mesopores structure, fairly monodispersed and in the size range of 100-300 nm, depending on the reactants concentration.

AB - The polymerization of conducting polyaniline (PANI) in lyotropic bicontinuous cubic phase consisted of poly(oxyethylene) 10 nonyl phenol ether (NP10), octane and water have been explored. The rheology measurements have been carried out in order to assess the phase behavior of the pure lyotropic mesophases, doped with reactant and after polymerization. It was found that the phase structure did not rupture upon polymerization as the complex modulus of the system after polymerization is maintained in the cubic phase region. The results of small-angle X-ray scattering (SAXS) also showed that the microstructure of the mesophase did not disrupt after the polymerization process and indicate the direct templating of polyaniline in the cubic lyotropic mesophase. The synthesized PANI particles have been characterized by energy filter transmission electron microscopy (EFTEM), UV-vis absorption and Fourier transform infrared (FTIR) spectroscopy. The spectroscopy studies revealed the presence of emeraldine salts in the polymer, and thus confirms that the prepared polyaniline is in conducting form. The microscopy results showed that the resulting polymers have spherical shape with mesopores structure, fairly monodispersed and in the size range of 100-300 nm, depending on the reactants concentration.

KW - Electron microscopy

KW - Lyotropic cubic phase

KW - Nanostructures

KW - Polymers

KW - Surfactant assemblies

UR - http://www.scopus.com/inward/record.url?scp=5744224694&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=5744224694&partnerID=8YFLogxK

U2 - 10.1016/j.colsurfa.2004.08.021

DO - 10.1016/j.colsurfa.2004.08.021

M3 - Article

VL - 247

SP - 35

EP - 40

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

SN - 0927-7757

IS - 1-3

ER -