Motsoako oa alkyl polyglycoside glycerol ethers

Tlhahiso ea li-alkyl polyglycoside glycerol ethers e entsoe ka mekhoa e meraro e fapaneng (Setšoantšo sa2, sebakeng sa motsoako oa alkyl polyglycoside, ke alkyl monoglycoside feela e bontšoang e le educt). The etherification ea alkyl polyglycoside le glycerol ka mokhoa oa A e tsoela pele tlas'a maemo a motheo a karabelo. Ho buloa ha selikalikoe sa epoxide ka mokhoa oa B ka mokhoa o ts'oanang ho etsahala ka pel'a li-catalyst tsa mantlha. Mokhoa o mong ke karabelo ea glycerol carbonate ka mokhoa oa C o tsamaeang le ho felisoa ha CO₂ le eo Mohlomong e tsoela pele ka epoxide joalo ka sethala sa mahareng.

Motsoako oa karabelo o futhumatsoa ka 200 ℃ ka nako ea lihora tse 7 moo metsi a entsoeng a ntse a hloekisoa ho tlosa tekano ka hohle kamoo ho ka khonehang lehlakoreng la sehlahisoa. Joalokaha ho lebeletsoe, li-alkyl polyglycoside di- le triglycerol ethers li thehoa ho phaella ho monoglycerol ether. Phetoho e 'ngoe ea bobeli ke ho itšehla thajana ha glycerol ho etsa li-oligoglycerol tse khonang ho sebetsana le alkyl polyglycoside ka tsela e tšoanang le ea glycerol. Lintho tse phahameng joalo tsa li-oligomers tse phahameng li ka ba tse lakatsehang ka ho feletseng hobane li ntlafatsa ho feta hydrophilicity 'me ka hona, mohlala, ho qhibiliha ha metsi ho lihlahisoa. Ka mor'a etherification, lihlahisoa li ka qhibiliha ka metsing 'me tsa bleached ka mokhoa o tsebahalang, mohlala ka hydrogen peroxide.

Tlas'a maemo ana a karabelo, tekanyo ea etherification ea lihlahisoa e ikemetse ho bolelele ba ketane ea alkyl ea alkyl polyglycoside e sebelisitsoeng. Setšoantšo sa3 se bonts'a likahare tsa liperesente tsa mono-,di- le triglycerol ethers ka har'a motsoako oa lihlahisoa tse tala bakeng sa bolelele bo fapaneng ba ketane ea alkyl. Karabelo ea C₁₂ alkyl polyglycoside e fana ka sephetho se tloaelehileng. Ho ea ka chromatogram ea khase, li-ether tsa mono-,di- le triglycerol li thehoa ka karolelano ea hoo e ka bang 3:2:1. Kakaretso ea li-ethers tsa glycerol ke hoo e ka bang 35%.