Abstract
The rheological properties of a series of lightly crosslinked carboxy copolymers in aqueous solutions have been evaluated in steady shear and dynamic oscillatory modes. Viscosity profiles and the behavior of storage modulus are related to the chemical composition of the copolymers and their crosslinking density. A maximum in viscosity and in storage modulus which depends on the type of crosslinking agent used is explained by a combination of a chain entanglement mechanism and a closely-packed spheres model. The recovery of viscosity and storage modulus after shearing is very fast and is related to the very fast rearrangement of the microgel structure as a function of time.
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Antonietti M, Sillescu H, Schmidt M, Schuch H (1988) Macromol 21:736
Antonietti M, Ehrlich D, Folsch KJ, Sillescu H, Schmidt M, Lindner P (1989) Macromol 22:2802
Antonietti M, Bremser W, Schmidt M (1990) Macromol 23:3796
Barry BW, Meyer MC (1979) (a) Int J of Pharmaceutics 2:1; (b) ibid 2:27
Chan LC, Nae HN, Gillham JK (1984) J Appl Polym Sci 29:3307
De Kruif CG, Van Iersel EMIT, Vrij A, Russel WB (1985) J Chem Phys 83:4717
BF Goodrich Company: Carbopol Bulletins GC 36 and GC
Ketz RJ, Prud'homme RK, Graessley WW (1988) Rheol Acta 27:531
Krieger IM (1972) Adv Coll Int Sci 3:111
Labana SS (1990) Encyclopedia of polymer science and engineering, vol 4, p 356
Mark JE (1982) Adv Polym Sci 44:1
Muller R, Gerard E, Dugand P, Rempp P, Gnanou Y (1991) Macromol 24:1321
Nielsen LE (1969) J Macromol Sci Revs C3 (1):69
Nielsen LE (1974) Mechanical properties of polymers and composites. Dekker, New York
Princen HM (1983) J Colloid Interface Sci 91:160
Winter HH, Morganelli P, Chambon F (1988) Macromol 21:532
Wolfe MS (1987) Polymer Prep 28 (2):270
Wolfe MS, Scopazzi C (1989) J Coll Int Sci 133 (1):265
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Naé, H.N., Reichert, W.W. Rheological properties of lightly crosslinked carboxy copolymers in aqueous solutions. Rheola Acta 31, 351–360 (1992). https://doi.org/10.1007/BF00418332
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DOI: https://doi.org/10.1007/BF00418332