Description

Emeraldine Base Polyaniline is the most stable and commercially significant oxidation state of the intrinsically conductive polymer, polyaniline. This material matters for its unique combination of electrical conductivity, environmental stability, and processability, which can be tailored through doping. It is primarily needed by industries focused on advanced materials for applications in corrosion protection, antistatic coatings, sensors, and energy storage devices.

Application

• Corrosion Inhibiting Coatings: Formulated into primers and paints for the protection of metals (e.g., steel, aluminum) in marine, automotive, and infrastructure applications.
• Antistatic and Conductive Composites: Incorporated into plastics, fibers, and films to dissipate static charge in electronics packaging, cleanroom equipment, and textile applications.
• Chemical Sensors: Used as an active sensing layer in devices to detect gases (ammonia, hydrogen sulfide) or changes in pH due to its reversible doping characteristics.
• Electrochromic Devices: Employed in smart windows and displays where its color changes predictably with applied electrical potential.
• Energy Storage: Investigated as an active component in electrodes for supercapacitors and hybrid battery systems.
• Electromagnetic Interference (EMI) Shielding: Blended with polymers to create lightweight shielding materials for electronic enclosures.

Basic Information

Product Name	Emeraldine Base Polyaniline
CAS No.	5612-44-2
Molecular Formula	(C6H7N)n
Molecular Weight	Variable (Polymer)
Synonyms	Polyaniline (Emeraldine Base Form); PANI-EB; Leucoemeraldine Base (oxidized); Aniline Black (Base); Poly(aniline) Emeraldine Base; Conducting Polymer Emeraldine; PANI Base; Poly(p-phenyleneamine-imine)
EINECS	Contact for details

Quality Control

Our Emeraldine Base Polyaniline is manufactured under controlled conditions to ensure batch-to-batch consistency. Quality is verified through a suite of analytical techniques including FT-IR for structural confirmation, UV-Vis spectroscopy to confirm the oxidation state, and GPC for molecular weight distribution. A Certificate of Analysis (COA) detailing purity, conductivity, and other key parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is light-sensitive and should be stored away from direct light exposure. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark green to blue-green powder
Identification (IR)	Conforms to structure
Oxidation State (UV-Vis)	Emeraldine Base (50% oxidized)
Intrinsic Conductivity (4-probe)	< 10-10 S/cm (Base form)
Doped Conductivity	1 - 10 S/cm (typical, upon protonic acid doping)
Solubility	Soluble in NMP, DMSO; Insoluble in water
Particle Size	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.