Amphiphilic diblock copolymers with adhesive properties: I. Structure and swelling with water |
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| Authors: | S. Poivet P. Fabre F. Nallet K. Schierholz G. Abraham É. Papon Y. Gnanou R. Ober O. Guerret N. -E. El-Bounia |
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| Affiliation: | (1) Centre de recherche Paul-Pascal, CNRS, 115 avenue Albert-Schweitzer, F-33600 Pessac, France;(2) Laboratoire de chimie des polymères organiques, UMR CNRS-ENSCPB-Université Bordeaux-I, 16 avenue Pey-Berland, F-33607 Pessac Cedex, France;(3) Laboratoire de physique des fluides organisés, UMR CNRS-Collège de France, 11 place Marcelin-Berthelot, F-75231 Paris Cedex 05, France;(4) groupement de recherches de Lacq, ARKEMA, Boıte postale 34, F-64170 Lacq, France |
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| Abstract: | We study asymmetric block copolymers with the simple diblock AB architecture, in the case where the longer block A is both hydrophobic and “soft”, whereas the shorter block B is hydrophilic and “hard”. Materials with such a particular combination of physico-chemical and mechanical properties have distinctive advantages, in particular for designing water-compatible adhesive materials. The phase diagram is established, combining NMR and SAXS characterisations of the materials. The swelling with water is monitored through gravimetry and “time-resolved” SAXS. Indications of maintained adhesive properties in a wet environment are given. |
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| Keywords: | 82.35.Jk Copolymers, phase transitions, structure 61.25.Hq Macromolecular and polymer solutions polymer melts swelling 82.35.Gh Polymers on surfaces adhesion |
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