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 lelei o le faʻafefiloi maeʻaeʻa o mea faʻafefete, ua faʻamaonia le aoga o le faʻaaogaina o le diethyl carbonate i le sili atu ina ia avea uma o se 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 se tufatufaga o le mono-, di- ma le tricarbonate o le 7:3:1 e maua i lalo o tulaga tali na faatoa faamatalaina (Ata 5).Afai e faateleina le taimi tali i le 7 itula ma afai e 2 moles 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 e 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 faʻamama.