Intrinsic viscosity calculated out of single point measurements for chondroitin-4-sulfate and chondroitin-6-sulfate solutions.
The differences in the structure of polymer chain between the chondroitin-4-sulfate (C4-S) and the chondroitin-6-sulfate (C6-S) are reflected in the intrinsic viscosity values calculated starting from the traditional methods of Huggins, Kraemer, Mead and Fouss, and Martin, and by the method for a single-point determination of intrinsic viscosity [eta]. For the range between 0.4 and 0.5% (w/v) concentrations, we get an agreement in the intrinsic viscosity values. The chains of both polymers present a flexible structure and are not ramified between 0.28 and 1.00% (w/v) concentrations.
Departamento de Química Física Farmacéutica, Facultad de Farmacia, Universidad Complutense, Madrid, Spain.
C
C
Arias
A
A
Yagüe
C
C
Rueda
F
F
García Blanco
D000465:Algorithms; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002809:Chondroitin Sulfates / Q000737:chemistry*; D012996:Solutions; D013696:Temperature; D014783:Viscosity
D012996:Solutions; D002809:Chondroitin Sulfates