Surfactants and Emulsifying Agents: The Main Classification and Characteristics
Heyam Saad Ali1* and Noon Abubakr A Kamil2
1Professor, Pharmaceutics Department, Pharmacy College, University of Khartoum, Sudan
2Instructor at Fatima College of Health Sciences, UAE
*Corresponding Author: Heyam Saad Ali, Professor, Pharmaceutics Department, Pharmacy College, University of Khartoum, Sudan.
December 27, 2022; Published: February 01, 2023
These types of polymers are divided to three classes: natural polymers, water-soluble and derivatives of synthetic hydrophilic and cellulose polymers.
- The polysaccharides which of natural origin called natural polymers such as, pectin, acacia, sodium alginate, agar, tragacanth, xanthan gum, and, and polypeptides e.g. gelatin and casein.
- The cellulose derivatives are chemically modified therefore, they are considered as semisynthetic products such as methylcellulose, sodium carboxymethylcellulose, and hydroxyethyl and hydroxypropyl cellulose.
- The synthetic water-soluble polymers include vinyl polymers such as polyvinyl alcohol and polyvinylpyrrolidone, Carbomer (Carbopol®), which is a copolymer of acrylic acid, and polyethylene glycols.
- Water-soluble polymers characterize of forming favor o/w emulsions, enhance viscosity, some used as emulsifying agents.
- Some of the mentioned water-soluble polymers rely on the particular chemical structure of the polymer.
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