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    Sintesis Selulosa Kaproat melalui Reaksi Interesterifikasi antara Selulosa Asetat dengan Metil Kaproat

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    Fulltext (2.052Mb)
    Date
    2005
    Author
    Misdawati
    Advisor(s)
    Silalahi, Jansen
    Brahmana, Hemat R
    Ginting, Mimpin
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    Abstract
    Cellulose has been acetylated with acetic anhydride using concentrated sulfuric acid as catalyst in glacial acetic acid. The interesterification reaction of cellulose and methyl caproate in methanol using sodium methoxyde as the catalyst yielded a novel compound cellulose caproate. Methyl caproate, cellulose acetate and cellulose caproate were confirmed by FT-IR and Spectroscopy Electron Magnetic (SEM). The result of acetyl substitution was 44,08% and DS was 2,92 while cellulose caproate with the yield of 60%.
     
    Selulosa telah diasetilasi dengan asetat anhidrid menggunakan asam sulfat pekat sebagai katalis dalam pelarut asam asetat-glasial. Interesterifikasi metil kaproat dengan selulosa asetat menggunakan pelarut metanol dan katalis natrium metoksida pada suhu refluks menghasilkan senyawa baru selulosa kaproat. Senyawa metil kaproat, selulosa asetat dan selulosa kaproat dikonfirmasikan melalui analisis spektroskopi FT-IR dan analis permukaan dengan Scanning Electron Microscopy. Hasil penelitian menunjukkan bahwa substitusi asetil mencapai 44,08% dengan derajat substitusi 2,95. Selulosa kaproat yang diperoleh dengan rendemen reaksi sebesar 60%.

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    http://repositori.usu.ac.id/handle/123456789/34443
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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