Controlled degradation of natural rubber and modification of the obtained telechelic oligoisoprenes: Preliminary study of their potentiality as polyurethane foam precursors |
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| Authors: | Anuwat Saetung Adisai Rungvichaniwat Irène Campistron Pairote Klinpituksa Albert Laguerre Pranee Phinyocheep Jean‐François Pilard |
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| Affiliation: | 1. L.C.O.M. Chimie des Polymères (UCO2M, UMR CNRS 6011), Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France;2. Department of Rubber Technology and Polymer Science, Faculty of Science and Technology, Prince of Songkla University, Pattani 94000, Thailand;3. Department of Science, Faculty of Science and Technology, Prince of Songkla University, Pattani 94000, Thailand;4. Department of Chemistry, Faculty of Science, Mahidol University, Phayathai, Bangkok 10400, Thailand |
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| Abstract: | Telechelic oligoisoprenes were successfully prepared by the selective controlled degradation of natural rubber, a renewable source, via epoxidation and cleavage reactions. The molar mass of the oligoisoprene product obtained depends on the degree of epoxidation of the starting materials. The chemically modified structures obtained via epoxidation, hydrogenation, and ring opening of epoxide groups were also studied, and the chemical structures and thermal properties of the oligoisoprene products were determined. Moreover, the preliminary study of preparation of hydroxytelechelic natural rubber (HTNR)‐based polyurethane foam was performed. A novel HTNR‐based polyurethane foam was successfully prepared and its thermal properties were investigated and the results indicated that the HTNR‐based polyurethane foam has a good low temperature flexibility. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 |
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| Keywords: | controlled degradation telechelic natural rubber polyurethane foam oligoisoprenes |
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