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Smart Reactivity in Gelatine/PNIPAM Mixtures: Control of the Cross-Linking and Microheterogeneities |
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| Authors: | C Boudet I Iliopoulos F Monti M Cloitre O Poncelet |
| Institution: | 1. Matière Molle et Chimie (UMR-7167, ESPCI-CNRS), ESPCI, 10 rue Vauquelin, 75231 Paris cedex 05, France;2. KODAK Industrie, Centre de Recherches, Route de Demigny, 71102 Chalon-sur-Saône cedex, France. |
| Abstract: | Chemical cross-linking of gelatine was achieved by using a thermo-sensitive reactive poly(N-isopropylacrylamide) as a cross-linker. The reaction occurs only below the LCST. Controlled micro-heterogeneities were created inside the gel without macroscopic volume transition. Acceleration of the drying process indicates faster water diffusion in the micro-heterogeneous gel. |
| Keywords: | gelatine gels heterogeneities poly(N-isopropylacrylamide) stimuli-sensitive polymers |