Polyanilines and their manufacture

Details Polyanilines and their manufacture Polyanilines and their manufacture

1996-02-22

1998-11-17

Nagumo, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Nitrogen-containing reactant

528502B, 252500, C08G 7302

Patent

active

058378065

ABSTRACT:
A polyaniline is characterized by a nuclear magnetic resonance spectrum in its leuco form showing only two .sup.13 C peaks, indicating the substantal absence of chain branching, and preferably by a molecular weight (M.sub.p) above 90,000 and up to about 170,000 (more especially 100-140,000). Oriented films of such polyanilines in the protonated emeraldine oxidation state have electrical conductivities up to at least around 500 S/cm.
They may be made by oxidizing aniline in aqueous solution with a persulfate under the combination of conditions

REFERENCES:
patent: 5205965 (1993-04-01), Uetani et al.
patent: 5324815 (1994-06-01), Ohtani et al.

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