Sintesis Surfaktan DilauroilMaltosa Me/alu/ Reaks/ Asetilas/ Terhadap Maltosa yang D//kut/ Reaks/ Transesterifikasi dengan Metil Laurat
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2009
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/28035/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11098 |
Daftar Isi:
- ABSTRACT Maltose has been partially acetylated from the reaction of melted maltose and acetic anhydride without solvent and catalyst to produce maltocyl acetate with the yield of 67%. Lauryc acid can be methanolizedusing H2S04as the catalyst to produce methyllaurate with the yield of 92%. The transesterifica.tionof methyllaurate and maltocyl acetate in methanol using sodium methoxyde as the catalyst at reflux, yielded a novel compound dilauroyl maltose after isolated by column chromatography, with the yield of 59%. Methyl laurate, maltocyl acetate, and dilauroyl maltose were confirmed by FT-IR and 'H-NMR spectroscopy, and the surface tension of dilauroyl maltose solution was determined by Du-Nuoy tensiometerto obtain the HLB value of 2.67. Keywords: Surfactant Transesterification, Maltose