Abstract
Polymer/polymer interfaces play a dominant role in various mechanical features: coextrusion, adhesive properties, toughness of polymer blends, being typical examples. We begin to have precise experimental informations on interfacial structures using refined probes such as neutron reflectances. At the same moment, the toughness of bulk (glassy) polymers, which craze under tension, begins to be understood through an original idea of H. Brown (1). It is thus tempting to extend the Brown ideas to various systems of “weak junctions”. The junction may be (i) a partly healed contact between two identical polymer blocks A/ A, as in the experiments of the Lausanne group (2) (3) (ii) a contact between two different polymers A and B. In all our discussion, we shall assume these junctions to be perfect -with full contact between the two partners, and no gaps: experimental arguments for the existence of these good contacts have been presented by Kausch and coworkers (2).
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de Gennes, P.G., Brochard-Wyart, F. (1993). Rheology at interfaces. In: Akovali, G. (eds) The Interfacial Interactions in Polymeric Composites. NATO ASI Series, vol 230. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1642-8_3
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DOI: https://doi.org/10.1007/978-94-011-1642-8_3
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