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Effect of polymer tacticity on the molecular structure of polyelectrolyte/surfactant stoichiometric complexes in solutions and gels

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Abstract.

The molecular structure of polystyrene sulphonate/CTAB stoichiometric complexes has been examined by means of small-angle neutron scattering in solutions and in the gel state for two different tacticities of the polystyrene moiety, namely atactic polystyrene and isotactic polystyrene. It is found that tacticity has no influence on the molecular structure in solution, while it plays a role in the gel state. The neutron scattering curves are interpreted with different helical models. The thermal properties of the gels are discussed in the light of the neutron scattering outcomes.

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Authors and Affiliations

  1. Institut Charles Sadron, CNRS UPR 22, 6 rue Boussingault, F-67083, Strasbourg Cedex, France

    B. Ray, S. El Hasri & J.-M. Guenet

Authors
  1. B. Ray
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  2. S. El Hasri
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  3. J.-M. Guenet
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Corresponding author

Correspondence to J.-M. Guenet.

Additional information

Received: 7 April 2003, Published online: 5 August 2003

PACS:

61.12.Ex Neutron scattering (including small-angle scattering) - 65.60. + a Thermal properties of amorphous solids and glasses: heat capacity, thermal expansion, etc. - 82.35.Rs Polyelectrolytes - 82.70.Gg Gels and sols

B. Ray: Present address: Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.

S. El Hasri: Permanent address: Département de Physique, Faculté des Sciences et Techniques du Guéliz, Université Cadi-Ayyad, B.P. 549, MA-40000 Marrakech, Morocco.

The neutron scattering experiments reported in this paper have been carried out on V4, a small-angle camera located at BENSC-HMI Berlin (Germany).

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Ray, B., El Hasri, S. & Guenet, JM. Effect of polymer tacticity on the molecular structure of polyelectrolyte/surfactant stoichiometric complexes in solutions and gels. Eur. Phys. J. E 11, 315–323 (2003). https://doi.org/10.1140/epje/i2003-10020-0

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  • DOI: https://doi.org/10.1140/epje/i2003-10020-0

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