Long Chain Acrylic Comonomer and Thickening Properties of Carbomers

This paper considers the effect of percent of a long chain comonomer as lauryl methacrylate in structure of a lightly cross-linked polycarboxylic structure which commercially named carbomers. The thickening behavior of aqueous solutions of a typical carbomer powder which prepared in same condition with different amount of s-lauryl methacrylate was studied by Sheen viscometer. A maximum amount of viscosity was obtained in 5% percent of comonomr. Increasing amount of comonomer above the optimum combination, lead to decrease the viscosity due to associating the hydrophobic chain together and preventing from maximum distribution in solvent

کلیدواژه ها:

Carbomer ، lauryl methacrylate ، cross-linked ، thickening ، hydrophobic chain