Solution characterization of surfactant solubilized polyaniline

C. L. Gettinger; A. J. Heeger; D. J. Pine; Y. Cao

doi:10.1016/0379-6779(95)80041-7

Solution characterization of surfactant solubilized polyaniline

C. L. Gettinger, A. J. Heeger, D. J. Pine, Y. Cao

Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Solutions of polyaniline (PANI) doped with camphor sulfonic acid (CSA) in m-cresol are studied with dynamic light scattering. Dynamic light scattering measurements performed on dilute solutions (c ≤ c*) show that, while some aggregation is present, PANI-CSA exists as single chains in solution at low concentrations (about 10^-4-10^-6) in m-cresol. The conformation of the polymer chains was studied as a function of polymer and added salt concentration. We find that the polymers extend as the polymer concentration is lowered and that the increase in the hydrodynamic radius can be expressed by a power law of the electrostatic screening length. This behavior is typical of polyelectrolytes in dilute solution, providing a basis for understanding the conformation changes of this metallic polymer in solution.

Original language	English (US)
Pages (from-to)	81-88
Number of pages	8
Journal	Synthetic Metals
Volume	74
Issue number	1
DOIs	https://doi.org/10.1016/0379-6779(95)80041-7
State	Published - Sep 1 1995

Keywords

Light scattering
Polyaniline
Surfactant

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/0379-6779(95)80041-7

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@article{d6fae08aa7a249049844391cc729c226,

title = "Solution characterization of surfactant solubilized polyaniline",

abstract = "Solutions of polyaniline (PANI) doped with camphor sulfonic acid (CSA) in m-cresol are studied with dynamic light scattering. Dynamic light scattering measurements performed on dilute solutions (c ≤ c*) show that, while some aggregation is present, PANI-CSA exists as single chains in solution at low concentrations (about 10-4-10-6) in m-cresol. The conformation of the polymer chains was studied as a function of polymer and added salt concentration. We find that the polymers extend as the polymer concentration is lowered and that the increase in the hydrodynamic radius can be expressed by a power law of the electrostatic screening length. This behavior is typical of polyelectrolytes in dilute solution, providing a basis for understanding the conformation changes of this metallic polymer in solution.",

keywords = "Light scattering, Polyaniline, Surfactant",

author = "Gettinger, {C. L.} and Heeger, {A. J.} and Pine, {D. J.} and Y. Cao",

note = "Funding Information: All PANI samples used were provided by Uniax Corporation. This research was partially funded by the National Science Foundation through NSF-DMR-9300366. C.L.G. would like to thank Exxon for their partial support.",

year = "1995",

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doi = "10.1016/0379-6779(95)80041-7",

language = "English (US)",

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T1 - Solution characterization of surfactant solubilized polyaniline

AU - Gettinger, C. L.

AU - Heeger, A. J.

AU - Pine, D. J.

AU - Cao, Y.

N1 - Funding Information: All PANI samples used were provided by Uniax Corporation. This research was partially funded by the National Science Foundation through NSF-DMR-9300366. C.L.G. would like to thank Exxon for their partial support.

PY - 1995/9/1

Y1 - 1995/9/1

N2 - Solutions of polyaniline (PANI) doped with camphor sulfonic acid (CSA) in m-cresol are studied with dynamic light scattering. Dynamic light scattering measurements performed on dilute solutions (c ≤ c*) show that, while some aggregation is present, PANI-CSA exists as single chains in solution at low concentrations (about 10-4-10-6) in m-cresol. The conformation of the polymer chains was studied as a function of polymer and added salt concentration. We find that the polymers extend as the polymer concentration is lowered and that the increase in the hydrodynamic radius can be expressed by a power law of the electrostatic screening length. This behavior is typical of polyelectrolytes in dilute solution, providing a basis for understanding the conformation changes of this metallic polymer in solution.

AB - Solutions of polyaniline (PANI) doped with camphor sulfonic acid (CSA) in m-cresol are studied with dynamic light scattering. Dynamic light scattering measurements performed on dilute solutions (c ≤ c*) show that, while some aggregation is present, PANI-CSA exists as single chains in solution at low concentrations (about 10-4-10-6) in m-cresol. The conformation of the polymer chains was studied as a function of polymer and added salt concentration. We find that the polymers extend as the polymer concentration is lowered and that the increase in the hydrodynamic radius can be expressed by a power law of the electrostatic screening length. This behavior is typical of polyelectrolytes in dilute solution, providing a basis for understanding the conformation changes of this metallic polymer in solution.

KW - Light scattering

KW - Polyaniline

KW - Surfactant

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JO - Synthetic Metals

JF - Synthetic Metals

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Solution characterization of surfactant solubilized polyaniline

Abstract

Keywords

ASJC Scopus subject areas

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