Emulsion polymerization process for soluble and electrically conductive polyaniline

P. J. Kinlen, Y. Ding, C. R. Graham, Jingyue Liu, E. E. Remsen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

A new emulsion process has been developed for the direct synthesis of the emeraldine salt of polyaniline (PANI) that is soluble in organic solvents. The process entails forming an emulsion composed of water, a water soluble organic solvent (e.g., 2-butoxyethanol), a water insoluble organic acid (e.g., dinonylnaphthalene sulfonic acid) and aniline. Aniline is protonated by the organic acid to form a salt which partitions into the organic phase. As oxidant (ammonium peroxydisulfate) is added, PANI salt forms in the organic phase and remains soluble. As the reaction proceeds, the reaction mixture changes from an emulsion to a two phase system, the soluble PANI remaining in the organic phase. With dinonylnaphthalene sulfonic acid (DNNSA) as the organic acid, the resulting product is truly soluble in organic solvents such as xylene and toluene(not a dispersion), of high molecular weight (M w>22,000), film forming and miscible with many polymers such as polyurethanes, epoxies and phenoxy resins. As cast, the polyaniline film is only moderately conductive, (10 -5 S/cm), however treatment of the film with surfactants such as benzyltriethylammonium chloride (BTEAC) or low molecular weight alcohols and ketones such as methanol and acetone increases the conductivity 2-3 orders of magnitude.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsJ.R. Reynolds, A.K.Y. Jen, M.F. Rubner, L.Y. Chiang, L.R. Dalton
PublisherMRS
Pages305-316
Number of pages12
Volume488
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 MRS Fall Meeting - Boston, MA, USA
Duration: Dec 1 1997Dec 5 1997

Other

OtherProceedings of the 1997 MRS Fall Meeting
CityBoston, MA, USA
Period12/1/9712/5/97

Fingerprint

Emulsion polymerization
Polyaniline
Organic acids
Emulsions
Organic solvents
Sulfonic Acids
Salts
Aniline
Water
Phenoxy resins
Molecular weight
Xylenes
Acids
Toluene
Xylene
Acetone
Ketones
Oxidants
Surface-Active Agents
Polyurethanes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Kinlen, P. J., Ding, Y., Graham, C. R., Liu, J., & Remsen, E. E. (1997). Emulsion polymerization process for soluble and electrically conductive polyaniline. In J. R. Reynolds, A. K. Y. Jen, M. F. Rubner, L. Y. Chiang, & L. R. Dalton (Eds.), Materials Research Society Symposium - Proceedings (Vol. 488, pp. 305-316). MRS.

Emulsion polymerization process for soluble and electrically conductive polyaniline. / Kinlen, P. J.; Ding, Y.; Graham, C. R.; Liu, Jingyue; Remsen, E. E.

Materials Research Society Symposium - Proceedings. ed. / J.R. Reynolds; A.K.Y. Jen; M.F. Rubner; L.Y. Chiang; L.R. Dalton. Vol. 488 MRS, 1997. p. 305-316.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kinlen, PJ, Ding, Y, Graham, CR, Liu, J & Remsen, EE 1997, Emulsion polymerization process for soluble and electrically conductive polyaniline. in JR Reynolds, AKY Jen, MF Rubner, LY Chiang & LR Dalton (eds), Materials Research Society Symposium - Proceedings. vol. 488, MRS, pp. 305-316, Proceedings of the 1997 MRS Fall Meeting, Boston, MA, USA, 12/1/97.
Kinlen PJ, Ding Y, Graham CR, Liu J, Remsen EE. Emulsion polymerization process for soluble and electrically conductive polyaniline. In Reynolds JR, Jen AKY, Rubner MF, Chiang LY, Dalton LR, editors, Materials Research Society Symposium - Proceedings. Vol. 488. MRS. 1997. p. 305-316
Kinlen, P. J. ; Ding, Y. ; Graham, C. R. ; Liu, Jingyue ; Remsen, E. E. / Emulsion polymerization process for soluble and electrically conductive polyaniline. Materials Research Society Symposium - Proceedings. editor / J.R. Reynolds ; A.K.Y. Jen ; M.F. Rubner ; L.Y. Chiang ; L.R. Dalton. Vol. 488 MRS, 1997. pp. 305-316
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