alexa Abstract | Viscometric study of carboxymethyl phenol-formaldehyde resins in 1,4-dioxane solvent

Journal of Chemical and Pharmaceutical Research
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Viscosity measurements of solutions of Carboxymethyl Phenol- formaldehyde (CMPF) resins were carried out in 1,4dioxane at 30o ± 0.3oC by using Ubbelohde viscometer. CMPF resins were prepared by reported method. The viscosity data of the solution of CMPF resins signified that the decrease in concentration of solution increases reduced viscosity (ɳred). This suggests the CMPF resins act as polyelectrolyte of anionic type. Thus the viscosity of the solution in 1,4dioxane suppressed by adding water and KBr in dioxane. Thus the viscosity measurements of solution of CMPF resins in dioxane-Water-KBr(80:20:1%) gives the intrinsic viscosity. Also applying empirical equation

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Author(s): Bhavin C Patel and Piyush J Vyas


Phenol- formaldehyde resin, Polyelectrolyte, Ubbelohde viscometer, reduced viscosity, empirical relation and intrinsic viscosity, carboxymethyl

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