3,4-ethylenedioxythiophene

3% 2,4-ethylene-dioxy-thiophene (3% 2,4-ethylenedioxythiophene), which has a wide range of uses. It has a significant role in the field of conductive polymer materials. It often participates in the polymerization reaction as a monomer, and copolymerizes with other monomers to form copolymers with unique electrical conductivity. Such copolymers are widely used in electronic devices such as organic Light Emitting Diodes (OLEDs) and organic field effect transistors (OFETs). In OLEDs, it can improve the conductivity and stability of the device, optimize the luminous efficiency and service life; in OFETs, it can enhance the carrier mobility and improve the electrical properties of the device.
Furthermore, in the field of antistatic materials, it also has a place. The polymer material obtained by adding an appropriate amount of 3% 2,4-ethylene dioxy thiophene can impart good antistatic properties to the material, which is widely used in electronic product packaging, textiles and other applications that require antistatic.
In the field of sensors, it can be used to prepare sensors with high sensitivity and selectivity to specific substances due to its unique electrical and chemical properties. For example, for some gas molecules, biomolecules, etc., it can cause electrical properties changes through its interaction with the target to achieve the detection of the target.
In addition, in the field of energy storage, polymer materials containing 3% 2,4-ethylenedioxythiophene can exhibit high specific capacitance and good cycle stability during the preparation of supercapacitor electrode materials, providing support for the development of high-performance supercapacitors.

The physical properties of 3% 2C4-ethylenedioxythiophene are quite unique. This substance is mostly solid at room temperature, with a nearly white and slightly yellowish color. It looks fine like powder and has a relatively uniform texture. Its melting point is between about 119 and 121 degrees Celsius. This temperature range is relatively clear. If heated to this range, the substance will gradually melt from a solid state to a liquid state.
In terms of solubility, in common organic solvents such as chloroform and toluene, it exhibits a certain solubility and can be dissolved into it to form a homogeneous system. However, in water, its solubility is extremely poor and it is almost insoluble. This property is due to the large difference in polarity between its molecular structure and water.
From the density point of view, it is about 1.33 grams per cubic centimeter, which is relatively dense compared to common organic compounds. In addition, it has good thermal stability. It is not easy to decompose when heated within a certain temperature range, and the structure can remain relatively stable. This property makes it advantageous in many application scenarios involving temperature changes. And the material has a certain conductivity in the solid state, although it is far inferior to metal conductors, but in the field of organic conductive materials, this conductivity is quite valuable and is of great significance in many electronic devices, conductive coatings and other applications.

3% 2C4-ethylenedioxythiophene, which is an organic compound with unique chemical properties.
This compound contains a thiophene ring and ethylenedioxy structure, which endows it with extraordinary properties. From the perspective of chemical activity, the electron cloud distribution on the thiophene ring is special, so that 3% 2C4-ethylenedioxythiophene can undergo electrophilic substitution reaction under specific conditions. Because the thiophene ring is an electron-rich system, it is attractive to electrophilic reagents.
Its stability is also worth mentioning. The introduction of the ethylenedioxy structure enhances the molecular stability to a certain extent. The oxygen atom in the ethylenedioxy part can form hydrogen bonds or other weak interactions with surrounding atoms, helping the molecule maintain a specific conformation and resist the molecular structure damage caused by external factors.
In terms of solubility, 3% 2C4-ethylenedioxythiophene has a certain solubility in some organic solvents such as chloroform and dichloromethane. This solubility is conducive to its use as a raw material or intermediate in organic synthesis and material preparation. Researchers can use these organic solvents to dissolve it and participate in various chemical reactions.
In terms of redox properties, 3% 2C4-ethylenedioxythiophene exhibits certain redox properties. Under suitable conditions, oxidation reactions can occur to generate corresponding oxidation state products. This redox property makes it important in many fields such as the preparation of conductive polymer materials. By controlling its oxidation state, it can regulate the electrical properties of materials.

3% 2C4-ethylenedioxythiophene (3,4-ethylenedioxythiophene), often abbreviated as EDOT, is prepared as follows:
The starting material is 2,3-dihydroxythiophene. 2,3-dihydroxythiophene and an appropriate amount of 1,2-dibromoethane are placed in a reactor with potassium carbonate as an acid binding agent, and an appropriate amount of organic solvent such as N, N-dimethylformamide (DMF) is added. Heat the reactor to a certain temperature, usually between 80 ° C and 120 ° C, and maintain this temperature for several hours, stirring continuously during this period to make the reaction fully proceed. After the
reaction is completed, the reaction liquid is cooled to room temperature, and then filtered to remove solid salts such as potassium bromide generated by the reaction. Next, the filtrate is distilled under reduced pressure to remove the organic solvent DMF. The residue is dissolved with an appropriate amount of dichloromethane, and then washed with dilute hydrochloric acid, water, and saturated saline water in turn to remove unreacted raw materials and impurities. The washed organic phase is dried with anhydrous sodium sulfate, filtered to remove the desiccant, and then distilled under reduced pressure again to collect fractions in a specific boiling point range to obtain 3,4-ethylenedioxythiophene products.
This preparation method, through the substitution reaction of halogenated hydrocarbons and hydroxyl groups, skillfully introduces ethylene dioxy groups on the thiophene ring, and the reaction conditions are mild and the operation steps are relatively simple, which can effectively prepare high-purity 3,4-ethylene dioxy thiophene, meeting the demand for its raw materials in many fields.

3% 2C4-ethylenedioxythiophene, known as EDOT in the world, is widely used in the market. It is a key monomer of conductive polymers and has extraordinary uses in the fields of electronics, energy and materials.
In the field of electronics, EDOT is often used to prepare conductive polymer materials. With its excellent conductivity and stability, it can be used as an electrode material for organic Light Emitting Diodes (OLEDs), which improves the luminous efficiency and stability of devices. It can also be used to fabricate organic field effect transistors (OFETs) to improve the carrier mobility and performance of transistors, laying the foundation for the development of flexible electronic devices.
In the field of energy, EDOT has also emerged. In the field of lithium-ion batteries, EDOT-based conductive polymers can be used as electrode additives to improve the cycle stability and rate performance of the battery, so that the battery can operate stably under different working conditions.
In the field of materials, EDOT can participate in the preparation of smart materials. Due to its sensitivity to environmental factors (such as temperature, humidity, electric field, etc.), responsive materials can be prepared, which are widely used in sensors. For example, humidity sensors can accurately sense and transmit signals according to changes in environmental humidity, providing a powerful means for environmental monitoring. It can also be used as an antistatic material to disperse static electricity on the surface of the material, ensuring the safety of production and use.