-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
-
Cosmetic Ingredient
- Water Treatment Chemical
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Ethylenediamine-ethylenimine (ED-EI) copolymer is a synthetic polymer that has been widely used in various applications in the chemical industry.
The polymer is a copolymer of ethylenediamine and ethylenimine, and it can be synthesized using various methods.
In this article, we will discuss the synthetic routes of ED-EI copolymer.
- Condensation Polymerization
Condensation polymerization is a reaction process in which two small molecules combine to form a larger molecule, releasing a small molecule as a byproduct.
This reaction is reversible and the rate of reaction is controlled by the concentration of reactants, temperature, and the nature of the reactants.
In the synthesis of ED-EI copolymer, the polymerization process is initiated by heating a mixture of ethylenediamine and ethylenimine in the presence of a weak acid catalyst.
The reaction proceeds through the following steps:
1st step: The ethylenediamine molecule reacts with an ethylenimine molecule to form a new bond, releasing NH3 gas as a byproduct.
2nd step: The remaining ethylenediamine molecule reacts with another ethylenimine molecule to form a new bond, releasing NH3 gas as a byproduct.
This reaction continues until all the reactants are consumed, leading to the formation of a copolymer.
The polymerization process can be controlled by adjusting the temperature, pressure, and concentration of reactants.
- Esterification Polymerization
Esterification polymerization is a reaction process in which a carboxylic acid and an alcohol react to form an ester and water as byproducts.
This reaction is reversible and the rate of reaction is controlled by the concentration of reactants, temperature, and the nature of the reactants.
In the synthesis of ED-EI copolymer, the polymerization process is initiated by heating a mixture of ethylenediamine and ethylenimine in the presence of a strong acid catalyst.
The reaction proceeds through the following steps:
1st step: The ethylenediamine molecule reacts with an ethylenimine molecule to form a new bond, releasing NH3 gas as a byproduct.
2nd step: The remaining ethylenediamine molecule reacts with another ethylenimine molecule to form a new bond, releasing NH3 gas as a byproduct.
This reaction continues until all the reactants are consumed, leading to the formation of a copolymer.
The polymerization process can be controlled by adjusting the temperature, pressure, and concentration of reactants.
- Ring-opening Polymerization
Ring-opening polymerization is a reaction process in which acyclic monomers react to form a polymer through the formation of new bonds.
This reaction is irreversible and the rate of reaction is controlled by the concentration of reactants, temperature, and the nature of the reactants.
In the synthesis of ED-EI copolymer, the polymerization process is initiated by adding a small amount of water to a mixture of ethylenediamine and ethylenimine.
The reaction proceeds through the following steps:
1st step: The water molecule attacks the carbonyl group of ethylenediamine, leading to the formation of an intermediate.
2nd step: The intermediate undergoes a series of reactions, including intramolecular and intermolecular reactions, leading to the formation of a copolymer.
This reaction continues until all the reactants are consumed, leading to the formation of a copolymer.
The polymerization process can be controlled by adjusting the temperature