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Rheological characteristics of hyperbranched polyesters

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Summary

When the effects of physical aging below T g are erased, the rheological response of a series of aliphatic hyperbranched polyesters is Newtonian and the melt viscosity scales roughly linearly with M w at high M w, indicating entanglement to be absent. The rheological behavior is also highly sensitive to the nature of the terminal groups, suggesting the overall behavior to be close to that of an assembly of compact coreshell "particles". There are therefore strong parallels between the physical behavior of the hyperbranched polyesters in question and that of their ideal dendrimer analogues.

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Authors and Affiliations

  1. Laboratoire de Technologie des Composites et Polymères (LTC), Laboratoire de Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Switzerland e-mail: jan-anders.manson@epfl.ch, Fax. +41 21 693 5880, , , , , , CH

    Christopher J.G. Plummer, André Luciani, Tuan-Quoc Nguyen, László Garamszegi, Marlene Rodlert & Jan-Anders E. Månson

Authors
  1. Christopher J.G. Plummer
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  2. André Luciani
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  3. Tuan-Quoc Nguyen
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  4. László Garamszegi
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  5. Marlene Rodlert
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  6. Jan-Anders E. Månson
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Additional information

Received: 14 April 2002 /Revised: 1 July 2002 / Accepted: 1 July 2002

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Plummer, C., Luciani, A., Nguyen, TQ. et al. Rheological characteristics of hyperbranched polyesters. Polymer Bulletin 49, 77–84 (2002). https://doi.org/10.1007/s00289-002-0066-3

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  • DOI: https://doi.org/10.1007/s00289-002-0066-3

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