New crosslinked polyurethane elastomers with various physical properties from natural rubber derivatives |
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| Authors: | Nasreddine Kébir Irène Campistron Albert Laguerre Jean‐François Pilard Claude Bunel |
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| Affiliation: | 1. Centre National de la Recherche Scientifique Unité Mixte de Recherche 6270, FR 3038 (Laboratoire Polymères Biopolymères Surfaces), Institut National des Sciences Appliquées de Rouen, F‐76801 Saint‐Etienne du Rouvray, France;2. Centre National de la Recherche Scientifique Unité Mixte de Recherche 6011 (Unité de Chimie Organique Moléculaire et Macromoléculaire), Laboratoire de Chimie Organique Macromoléculaire, Université du Maine, Avenue Olivier Messiaen, F‐72085 Le Mans Cedex 9, France |
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| Abstract: | New hydroxytelechelic cis‐1,4‐oligoisoprenes exhibiting variable values and distributions of the hydroxyl functionality were successfully prepared. The synthesis reactions involved chemical modifications of carbonyl telechelic cis‐1,4‐polyisoprene, which was obtained by controlled degradation of synthetic or natural rubber. These new oligomers were reacted with toluene diisocyanate to elaborate crosslinked polyurethane elastomers. The thermomechanical properties of the prepared polyurethanes were investigated. The results show a strong relationship between the chemical structures and properties. This work mainly shows the potentiality of making new crosslinking polyurethane materials with controlled and various properties from natural rubber, a renewable resource. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011 |
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| Keywords: | crosslinking mechanical properties polyurethanes rubber structure‐property relations |
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