Anuwat SaetungAdisai RungvichaniwatIrène CampistronPairote KlinpituksaAlbert LaguerrePranee PhinyocheepJean François PilardUniversite du Maine Le Mans - LavalPrince of Songkla UniversityMahidol University2018-09-242018-09-242010-08-01Journal of Applied Polymer Science. Vol.117, No.3 (2010), 1279-128910974628002189952-s2.0-77952057711https://repository.li.mahidol.ac.th/handle/20.500.14594/28931Telechelic 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.Mahidol UniversityChemistryMaterials ScienceArticleSCOPUS10.1002/app.31907