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
• Published: [Yogyakarta] : Universitas Gadjah Mada 2009
• Subjects: Jurnal i-lib UGM
• Online Access: https://repository.ugm.ac.id/28035/; http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11098
• Institution: Universitas Gadjah Mada

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