Poly(urethane) synthesized from 9-ethoxy-1,10-octadecanediol obtained by modification of palm oil oleic acid

Bunbun Bundjali; Muhammad Masykuri; Fitri Widya Hartanti; I Made Arcana

doi:10.5614/j.math.fund.sci.2018.50.1.2

Authors

Bunbun Bundjali Inorganic and Physical Chemistry Research Division, Faculty of Mathematic and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132
Muhammad Masykuri Inorganic and Physical Chemistry Research Division, Faculty of Mathematic and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132
Fitri Widya Hartanti Inorganic and Physical Chemistry Research Division, Faculty of Mathematic and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132
I Made Arcana Inorganic and Physical Chemistry Research Division, Faculty of Mathematic and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132

DOI:

https://doi.org/10.5614/j.math.fund.sci.2018.50.1.2

Keywords:

9-ethoxy-1, 10-octadecanediol, oleic acid, palm oil, poly(urethane-urea), synthesis

Abstract

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 C. The 9-ethoxy-1,10-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 ¹H 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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