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Effects of Surfactants on the Linear Rheology of Telechelic Associating Polymers

  • Tsutomu IndeiEmail author
Conference paper
Part of the Progress in Colloid and Polymer Science book series (PROGCOLLOID, volume 136)

Abstract

The influence of low-molecular-weight surfactants on the linear rheology of telechelic associating polymers is studied on the basis of the transient network theory. It is shown that dynamic shear moduli are well described in terms of a Maxwell model characterized by a plateau modulus G and a single relaxation time τ. As reported experimentally, a peak appears in G and τ (and therefore in the zero-shear viscosity) with an increase in the surfactant concentration under the conditions that the junction multiplicity has upper and lower bounds and that the formation of the pairwise junctions is allowed. As the surfactant concentration increases, a contraction occurs followed by the extension of the concatenated chain comprising several polymers connected in series. The peak of the relaxation time is attributed to this contraction and extension. On the other hand, the peak of the plateau modulus is attributed to the upper and lower bounds on the multiplicity, as suggested by Tanaka [Macromolecules (1998) 31: 384].

Keywords

Telechelic polymers Surfactants Mixed micelles Transient networks Linear rheology 

Notes

Acknowledgements

This research was partially supported by the Ministry of Education, Culture, Sports, Science and Technology of Japan, Grant-in-Aid for Young Scientists (B) 19740259.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Fukui Institute for Fundamental ChemistryKyoto UniversityKyotoJapan
  2. 2.Faculty of Engineering, Department of Polymer Science and EngineeringYamagata UniversityYonezawaJapan

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