期刊
JOURNAL OF MATHEMATICAL AND FUNDAMENTAL SCIENCES
卷 50, 期 1, 页码 13-27出版社
INST TEKNOLOGI BANDUNG
DOI: 10.5614/j.math.fund.sci.2018.50.1.2
关键词
9-ethoxy-1,10-octadecanediol; oleic acid; palm oil: poly(uretha;ne-urea); synthesis
资金
- Research Grant of the Competition Research Program under the Directorate of Higher Education, Department of National Education, the Republic of Indonesia
- Institute for Research - LPPM, Institut Teknologi Bandung (ITB)
Poly(urethane) (PU) as a prepolymer was prepared by polymerization of the diol compound (9-ethoxy-1,10-octadecanediol) and 4,4-methylen-bis phenyl isocyanate (MDI) under nitrogen atmosphere at 85 degrees C. The 9-ethoxy1,10-octadecanediol was obtained by several reaction steps, i.e. epoxydation of oleic acid obtained from palm oil, ring-opening of oleic acid epoxide, and reduction of oleic acid ester. All compounds obtained in this work were characterized by chemical structure analysis (FTIR and H-1 NMR), supported by analysis of iodine value, acid value, and hydroxyl value determined by titration methods and thermal analysis, especially for poly(urethane). The 9-ethoxy-1,10-octadecanediol as the diol compound for preparation of poly(urethane) was analyzed by FTIR, supported by hydroxyl numbers determined by titration. Poly(urethane-urea) (PUU) was obtained by addition of ethylene diamine as chain extender to poly(urethane). The thermal stability of poly(urethane-urea) is higher than that of poly(urethane). The addition of ethylene diamine as chain extender in poly(urethane) can improve the intrinsic viscosity of polymer to form poly(urethane-urea). These results are supported by chemical structure analysis.
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