PANI Polyaniline Conducting/Insulating State CAS 25233-30-1
Polyaniline (often abbreviated as PANI) is a conducting polymer that has garnered significant attention in the fields of materials science and engineering due to its unique electrical, chemical, and physical properties. It is one of the most extensively studied conducting polymers alongside polythiophene and polypyrrole.
Description of Polyaniline from Wuhan Fortuna Chemical Co.,Ltd
Basic Information of Polyaniline | |
Product Name | Polyaniline(Conducting State/Insulating State) |
CAS NO. | 25233-30-1/5612-44-2 |
Apperance | Dark Green Powder |
Assay | 98% |
Pacakge | 1kg/Foil Bag |
MOQ | 1kg |
Storage | Cool and dry place |
Shelf Life | 2 Years |
Brand | Watson |
Specifications(COA) of PANI Polyaniline Conducting/Insulating State CAS 25233-30-1/5612-44-2 Conductive Polymer Emeraldine Salt High Purity of 98%
ITEMS | SPECIFICATION | RESULTS |
Appearance | Green Powder(100um) | Dark Green Powder |
Purity wt % | ≥98 | 98.5 |
Electric Conductivity S/cm | 0.5 ～ 1.5 | 0.5 |
Performance density g/cm3 | 0.25～ 0.45 | 0.3 |
Partical size µm | ＜106µm | 100µm |
Doping rate (molar ratio) | >30% | 35% |
Conclusion | QUALIFIED. | |
P
olyaniline (often abbreviated as PANI) is a conducting polymer that has garnered significant attention in the fields of materials science and engineering due to its unique electrical, chemical, and physical properties. It is one of the most extensively studied conducting polymers alongside polythiophene and polypyrrole.
Chemical Structure and Synthesis
Polyaniline is derived from the oxidative polymerization of aniline, an aromatic amine. The polymer can exist in several oxidation states, including:
1. Leucoemeraldine: The fully reduced form.
2. Emeraldine: The half-oxidized form, which is electrically conductive when doped.
3. Pernigraniline: The fully oxidized form.
The emeraldine salt form is particularly notable for its conductivity and stability. The synthesis of polyaniline typically involves chemical or electrochemical methods, with chemical oxidative polymerization being the most common approach. Various dopants, such as acids, can be used to enhance its conductivity by introducing charge carriers.
Properties
- Electrical Conductivity: Polyaniline exhibits variable conductivity, which can be tuned by doping and the oxidation state of the polymer. Its conductivity ranges from insulating in its leucoemeraldine form to metallic levels in its pernigraniline form.
- Environmental Stability: PANI is relatively stable under ambient conditions, resisting degradation from air and moisture better than some other conducting polymers.
- Mechanical Properties: It possesses good mechanical strength and flexibility, making it suitable for various applications.
- Color Variations: Depending on its oxidation state and doping level, polyaniline can display a range of colors from yellow (leucoemeraldine) to green (emeraldine) and blue (pernigraniline).
Applications
Polyaniline's unique properties make it suitable for a wide array of applications, including:
- Electronics and Sensors: Used in antistatic coatings, electromagnetic shielding, and as a material for sensors detecting gases like ammonia and nitric oxide.
- Energy Storage: Utilized in batteries and supercapacitors due to its good electrical conductivity and redox properties.
- Corrosion Protection: Acts as a protective coating for metals, preventing corrosion.
- Biomedical Devices: Explored for use in biosensors and drug delivery systems owing to its biocompatibility.
Flexible Electronics: Its flexibility and conductivity make it ideal for wearable electronic devices.
Advantages and Challenges
Advantages:
Tunability: Its electrical properties can be easily modified through doping and synthesis conditions.
Cost-Effectiveness: Relatively inexpensive to produce compared to some other conducting polymers.
Environmental Stability: Greater resistance to environmental degradation.
Challenges:
Processability: Polyaniline can be challenging to process into certain forms, such as films or fibers, without compromising its properties.
Limited Solubility: Its solubility is often limited, which can hinder processing and application development.
Mechanical Brittleness: While it has good mechanical strength, it can be brittle under certain conditions.
Conclusion
Polyaniline stands out as a versatile and promising material in the realm of conducting polymers. Its adjustable electrical properties, combined with environmental stability and a range of practical applications, continue to drive research and development aimed at harnessing its full potential in advanced technological solutions.
FAQ From Wuhan Fortuna Chemical Co.,Ltd
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Wuhan Fortuna Chemical Co.,Ltd is a professional manufacturer which provide Polyaniline with good quality and best price, welcome to contact us to get COA/TDS/MSDS of Polyaniline.
