Structure and dynamics in aqueous solutions of amphiphilic sodium maleate-containing alternating copolymers

E. Di Cola, N. Plucktaveesak, T. A. Waigh, Ralph H. Colby, J. S. Tan, W. Pyckhout-Hintzen, R. K. Heenan

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The structure of aqueous solutions of sodium maleate copolymers with comonomers of variable hydrophobicity are examined using a combination of small-angle neutron scattering, small-angle X-ray scattering, and rheometry. Semidilute solutions of the copolymers made with mildly hydrophobic comonomers exhibit scattering and rheology that are typical of flexible polyelectrolytes, with a correlation length scaling with polymer concentration as c α with α = 1/2 and specific viscosity scaling as c 1/2/c 3/2 when unentangled/entangled. In contrast, copolymers with more than eight carbons in their hydrocarbon comonomer form micelles (globules) at low concentrations and molecular weights. For these more hydrophobic copolymers, the correlation length scales as c with α < 1/3 and the viscosity remains small until a relatively high concentration at which the globules start to overlap. Once these more hydrophobic copolymers overlap, the micelles open up and allow intermolecular associations that cause the viscosity to increase rapidly with concentration, typical of associating polymer solutions.

Original languageEnglish (US)
Pages (from-to)8457-8465
Number of pages9
JournalMacromolecules
Volume37
Issue number22
DOIs
StatePublished - Nov 2 2004

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Copolymers
Sodium
Micelles
Viscosity
Polymer solutions
Hydrophobicity
Neutron scattering
Hydrocarbons
Polyelectrolytes
X ray scattering
Rheology
Polymers
Carbon
Molecular weight
maleic acid
Scattering

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Di Cola, E., Plucktaveesak, N., Waigh, T. A., Colby, R. H., Tan, J. S., Pyckhout-Hintzen, W., & Heenan, R. K. (2004). Structure and dynamics in aqueous solutions of amphiphilic sodium maleate-containing alternating copolymers. Macromolecules, 37(22), 8457-8465. https://doi.org/10.1021/ma049260h
Di Cola, E. ; Plucktaveesak, N. ; Waigh, T. A. ; Colby, Ralph H. ; Tan, J. S. ; Pyckhout-Hintzen, W. ; Heenan, R. K. / Structure and dynamics in aqueous solutions of amphiphilic sodium maleate-containing alternating copolymers. In: Macromolecules. 2004 ; Vol. 37, No. 22. pp. 8457-8465.
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Di Cola, E, Plucktaveesak, N, Waigh, TA, Colby, RH, Tan, JS, Pyckhout-Hintzen, W & Heenan, RK 2004, 'Structure and dynamics in aqueous solutions of amphiphilic sodium maleate-containing alternating copolymers', Macromolecules, vol. 37, no. 22, pp. 8457-8465. https://doi.org/10.1021/ma049260h

Structure and dynamics in aqueous solutions of amphiphilic sodium maleate-containing alternating copolymers. / Di Cola, E.; Plucktaveesak, N.; Waigh, T. A.; Colby, Ralph H.; Tan, J. S.; Pyckhout-Hintzen, W.; Heenan, R. K.

In: Macromolecules, Vol. 37, No. 22, 02.11.2004, p. 8457-8465.

Research output: Contribution to journalArticle

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AU - Waigh, T. A.

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