Fa'asologa o Alkyl polyglycoside carbonates

Alkyl polyglycoside carbonates na saunia e ala i le transesterification o alkyl monoglycosides ma diethyl carbonate (Ata 4). Mo le fa'afefiloiina mae'ae'a o mea fa'afoliga, ua fa'amaonia le aoga tele o le fa'aogaina o le diethyl carbonate e sili atu ina ia avea uma ma vaega transesterification ma se solvent. 2Mole-% o le 50% sodium hydroxide solution ua faʻaopoopoina i lalo ile paluga i lenei paluga ma faʻamalosi ile 120 ℃. A maeʻa le 3hours i lalo ole reflux, o le faʻafefiloi o tali e faʻatagaina e malulu ile 80 ℃ ma faʻafefeteina ile 85% phosphoric acid. Ole tele ole diethyl carbonate e fa'amama ese ile vacuo. I lalo o nei tulaga tali, tasi le hydroxyl vaega e sili ona esterified. O le fua faatatau o totoe o le fa'aulu i oloa i le 1:2.5:1(monoglycoside: Monocarbonate:Polycarbonate).

E ese mai i le monocarbonate, o oloa ma se maualuga maualuga o le suitulaga o loʻo faia foi i lenei tali. O le maualuga o le faʻaopoopoga o le carbonate e mafai ona faʻatonutonuina e le tomai faʻafoe o le tali. Mo se C₁₂ monoglycoside, o le tufatufaga o le mono-, di- ma le tricarbonate o le 7:3:1 e maua i lalo o tulaga tali atu na faatoa faamatalaina (Ata 5). Afai e faateleina le taimi tali i le 7 itula ma afai e 2moles o le ethanol e fa'amama ese i lena taimi, o le oloa autu o le C.₁₂ monoglycoside dicarbonate. Afai e faʻateleina i le 10 itula ma 3moles o le ethanol ua faʻaumatia, o le oloa autu e maua mulimuli ane o le tricarbonate. O le maualuga o le faʻaopoopoga o le carbonate ma o le mea lea o le paleni hydrophilic / lipophilic o le alkyl polyglycoside compound e mafai ona faʻafetaui lelei e ala i suiga o le taimi faʻaalia ma le voluma distillate.