Polyanilines and Polyaniline Dopants

Polyaniline (PANI) is a versatile conducting polymer easily processed by melt or solution process, and is environmentally and thermally stable.1 PANI exists in three stable oxidation states (as shown on the right). The doped emeraldine salt forms of PANI exhibit very high conductivities and are often used for hole-injection (HIL) layers in PLEDs and OPVs. Sigma-Aldrich® offers a full line of the stable, doped and undoped PANIs for a variety of processing needs. We also offer high performance dopants for PANIs.

References
1. Stejskal, J.; Gilbert, R. Pure. Appl. Chem., 74, 857 (2002).

Emeraldine Salts

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912409 High Performance Silicon Anode 1 micron (Si)
912891 High surface area conducting polyaniline
428329 Polyaniline (emeraldine salt) average Mw >15,000, powder (Infusible), 3-100 μm particle size
530565 Polyaniline (emeraldine salt) composite (20 wt.% polyaniline on carbon black)
577073 Polyaniline (emeraldine salt) composite (30 wt.% polyaniline on nylon)
561126 Polyaniline (emeraldine salt) short chain, grafted to lignin powder

Emeraldine Bases

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556459 Polyaniline (emeraldine base) average Mw ~5,000
556386 Polyaniline (emeraldine base) average Mw ~50,000
576379 Polyaniline (emeraldine base) average Mw ~100,000
476706 Polyaniline (emeraldine base) average Mw ~10,000
556378 Polyaniline (emeraldine base) average Mw ~20,000
530689 Polyaniline (emeraldine base) average Mw ~65,000

Leucoemeraldine Bases

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530670 Polyaniline (leucoemeraldine base)

Dopants

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147923 Camphor-10-sulfonic acid (β) 98%
522988 Dinonylnaphthalenedisulfonic acid solution 55 wt. % in isobutanol
522953 Dodecylbenzenesulfonic acid solution 70 wt. % in isopropanol