Solution properties of polyaniline

Date

2010-04-01

Author

Yilmaz, Faris
Kucukyavuz, Zuhal

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Solution properties of polyaniline (PANI) synthesized at various temperatures were studied using static light scattering (SLS), intrinsic viscosity, and dynamic light scattering (DLS). We demonstrated that average radius of gyration (R-g), intrinsic viscosity [eta], and average hydrodynamic radius (R-H), of polyaniline molecules in dilute N-methyl-2-pyrrolidinone (NMP) solutions increased with decreasing synthesis temperatures, i.e.; increasing molecular weight. SLS data demonstrate that second virial coefficient (A(2)) decreased with increasing particle sizes suggesting that solubility of PANI in NMP decreased with increasing particle sizes. We also 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. (C) 2009 Society of Chemical Industry

Subject Keywords

Polymers and Plastics

URI

https://hdl.handle.net/11511/66136

Journal

POLYMER INTERNATIONAL

DOI

https://doi.org/10.1002/pi.2736

Collections

Department of Chemistry, Article

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Citation Formats

F. Yilmaz and Z. Kucukyavuz, “Solution properties of polyaniline,” POLYMER INTERNATIONAL, pp. 552–556, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66136.