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    Sintesis 1-Kapril,-3,4,6-Triasetilmanitol Sebagai Surfaktan

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    Date
    1999
    Author
    Salbi, Saleha
    Advisor(s)
    Bangun, Hakim
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    Abstract
    -Mannitol has been partially acetylated by reacting liquid of D-mannitol and acetic anhydride without solvent and catalyst to obtain 1,3,4,6-tetraacetylmannitol. Then 1,3,4,6-tetraacetylmannitol could be interesterified by adding methyl caprylic using sodium methoxyde as a catalyst to produced 1-eapryl-3,4,6 triacetylmannitol. This product was a surfactant containing a long alkyl group, three methyl groups, and two hydroxyl groups in its molecule. The structure of this compound was confirmed by FT-IR and H-NMR spectrometers, and the surface active of its solution was determined by Du-Nuoy tensiometer to obtain the HLB value, it was 3.78.
     
    D-Manitol telah diasetilasi secara parsial dengan mereaksikan D-manitol cair dan asetat anhidrida tanpa pelarut dan katalis untuk menghasilkan 1,3,4,6-tetraasetilmanitol. Selanjutnya 1,3,4,6-tetraasetilmanitol dapat diinteresterifikasikan dengan metil kaprilat menggunakan katalis natrium metoksida untuk membentuk 1-kapril-3,4,6-triasetilmanitol. Produk ini merupakan suriaktan yang mengandung satu gugus alkil rantai panjang, tiga gugus metil dan dua gugus hidroksil pada molekulnya. Struktur senyawa ini dikonfirmasikan dengan spektrometer FT-IR dan H-NMR, serta pengukuran tegangan permukaan larutannya dengan tensiometer Du-Nuoy untuk menentukan nilai HLB, yang besarnya 3,78.

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    http://repositori.usu.ac.id/handle/123456789/43371
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    Repositori Institusi Universitas Sumatera Utara - 2025

    Universitas Sumatera Utara

    Perpustakaan

    Resource Guide

    Katalog Perpustakaan

    Journal Elektronik Berlangganan

    Buku Elektronik Berlangganan

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV