Title

Electroviscous Contribution to the Rheology of Colloidal Unimolecular Polymer (CUP) Particles in Water

Abstract

The rheological characteristics of anionic colloidal unimolecular polymer (CUP) particles in water were investigated. the intrinsic viscosities were determined for CUPs with different molecular weights as a function of volume fraction. the specific viscosities were measured and fit with models considering hydrodynamic interaction and electroviscous effects. the rheological characteristics were consistent with a surface layer of water which increases with the particle size or molecular weight of CUPs. the effective charges on the surface of particle were calculated and correlated with the rheological behavior of the CUP particles from the dilute to semidilute range, a volume fraction of 0.0001-0.08.

Department(s)

Chemistry

International Standard Serial Number (ISSN)

7437463

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2013 American Chemical Society (ACS), All rights reserved.


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