dc.contributor.advisor | Brahmanta, Hemat R | |
dc.contributor.advisor | Sembiring, Seri Bima | |
dc.contributor.advisor | Ginting, Mimpin | |
dc.contributor.author | G, Devi Marleny | |
dc.date.accessioned | 2021-08-25T01:58:49Z | |
dc.date.available | 2021-08-25T01:58:49Z | |
dc.date.issued | 2002 | |
dc.identifier.uri | http://repositori.usu.ac.id/handle/123456789/41203 | |
dc.description.abstract | Acetalitation of monolactoyl glycerol with stearaldehyde gave 2-heptadecyl-4-(methylene-2-hidroxy propanoyl)- 1,3-dioxolane with a yield of 82 %. Monolactoyl glycerol was prepared from sodium lactate and a-monochlorohidrin with 60% yield, and stearaldehyde was prepared by oxidation of stearyl alcohol (49%). The product of each reaction was confirmed by FT-IR and ‘H-NMR spectroscopies. The hydrophilicity of monolactoyl glycerol and 2-heptadecyl-4-(methylene-2-hidroxy propanoyl)- 1,3-dioxolane were determined by Du-Nouy tensiometer. The value of Critical Micelle Concentration (CMC) and HLB of monolactoyl glycerol and 2-heptadecyl-4-(methylene-2-hidroxy propanoyl)-1,3-dioxolane were 0.07% ; 4.38 and 0.0009% ; 2.82 respectively. | en_US |
dc.description.abstract | Asetalisasi monolaktoil gliserol dengan stearaldehida menghasilkan 2-heptadekil-4-(metilen-2-hidroksi propanoil)-1,3-dioksolan dengan rendemen sebesar 82%. Senyawa monolaktoil gliserol dibuat dari reaksi natrium laktat dengan u-monoklorohidrin dengan rendemen sebesar 60%, dan stearaldehida dibuat dengan oksidasi stearil alkohol dengan rendemen sebesar 49%. Produk yang dihasilkan pada setiap tahap reaksi dikonfirmasikan dengan spektroskopi FT-IR dan ‘H-NMR. Kehidrofilikan monolaktoil gliserol dan 2-heptadekil-4-(metilen-2-hidroksi propanoil)-1,3-dioksolan diuji dengan tensiometer Du-Nouy. Harga Critical Micelle Concentration (CMC) dan HLB dari monolaktoil gliserol dan 2-heptadekil-4-(metilen-2-hidroksi propanoil)1,3- dioksolan adalah 0,07% ; 4,38 dan 0,0009% ; 2,82. | en_US |
dc.language.iso | id | en_US |
dc.publisher | Universitas Sumatera Utara | en_US |
dc.title | Sintesis Surfaktan 2-Heptadekil4-(Metilen-2-Hidroksi Propanoil)-1,3-Dioksolan | en_US |
dc.type | Thesis | en_US |
dc.identifier.nim | NIM002106004 | |
dc.description.pages | 95 Halaman | en_US |
dc.description.type | Tesis Magister | en_US |