POLYANILINE

Base Information

• Chemical Name: POLYANILINE
• CAS No.: 25233-30-1
• Molecular Formula: (C6H7N)x
• Molecular Weight: 93.12650
• Mol file: 25233-30-1.mol

Synonyms:Emeraldine base polyaniline;LEB,Leucoemeraldine base polyaniline;N,4-Dimethylaniline;

Chemical Property of POLYANILINE

Chemical Property:

• Melting Point: >350oC
• Refractive Index: 1.85
• Boiling Point: <82ºC
• Flash Point: 23 °C
• PSA: 26.02000
• Density: 1.36 g/mL at 25ºC
• LogP: 1.85000
• Storage Temp.: Keep in dark place,Sealed in dry,Room Temperature
• Solubility.: Soluble in sulfuric acid and methanesulfonic acid.

Purity/Quality:

98% ^*data from raw suppliers

Polyaniline (emeraldine base) average Mw ~5,000 ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn,T,F
• Hazard Codes: Xn,T,F
• Statements: 10-20/21-38-67-36-11-61
• Safety Statements: 25-45-26-16-53

MSDS Files:

SDS file from LookChem

Useful:

• General Description: Polyaniline, also known as emeraldine base polyaniline, LEB, or leucoemeraldine base polyaniline, is a conductive polymer with applications in electrochromic devices, sensors, and biosensors. Its conductivity can be enhanced through copolymerization or cross-linking, as demonstrated by its integration with polymethacrylamide networks, which prevents phase separation and improves electrical performance. The polymer's versatility allows for synthesis via free radical, oxidative, or electrochemical methods, making it adaptable for diverse functional materials.

Refernces

Chimeric polymers formed from a monomer capable of free radical, oxidative and electrochemical polymerisation

10.1039/b821409c

The research focuses on the development of a new monomer, N-phenylethylenediamine methacrylamide (NPEDMA), which incorporates both aniline and methacrylamide functional groups. The purpose of this study was to create a monomer capable of orthogonal polymerization behavior, yielding conjugated polyaniline suitable for a wide range of applications such as electrochromic devices, sensors, and biosensors. The researchers synthesized homo or co-polymers containing the aniline moiety, which could then be polymerized to yield polyaniline. They also incorporated cross-linking agents to create interpenetrating polymethacrylamide–polyaniline networks, preventing phase separation. The monomer was polymerized using free radical, chemical oxidative, and electrochemical methods. Chemicals used in the process included NPEDMA, ethylene glycol dimethacrylate (as a cross-linker), ammonium persulfate (as an oxidizing agent), and N,N-diethyldithiocarbamic acid benzyl ester (as an initiator for cross-linking). The study concluded that the conductivity of the synthesized materials was higher than that of polyaniline synthesized under similar conditions, with the conductivity increasing two-fold when 5% ethylene glycol dimethacrylate was incorporated. The research demonstrated the potential of NPEDMA in creating conductive polymer surfaces and its versatility in various applications.