Ukuhlanganiswa kwe-alkyl polyglycoside glycerol ethers

Ukuhlanganiswa kwe-alkyl polyglycoside glycerol ether kwenziwa ngezindlela ezintathu ezahlukene (Umfanekiso2, esikhundleni sengxube ye-alkyl polyglycoside, i-alkyl monoglycoside kuphela ekhonjiswa njenge-educt). Ukufakwa kwe-etherification kwe-alkyl polyglycoside nge-glycerol ngendlela A kuqhubeka ngaphansi kwezimo zokusabela eziyisisekelo. Ukuvulwa kweringi ye-epoxide ngendlela B nakho kwenzeka lapho kukhona ama-catalysts ayisisekelo. Okunye ukusabela nge-glycerol carbonate ngendlela C ehambisana nokuqedwa kwe-CO₂ futhi okungenzeka ukuthi iqhubeke nge-epoxide njengesiteji esimaphakathi.

Ingxube yokusabela ibe isishisiswe ngo-200℃ esikhathini esingamahora angu-7 lapho amanzi akhiwe ekhishwa ngokuqhubekayo ukuze asuse ukulingana ngangokunokwenzeka ohlangothini lomkhiqizo. Njengoba kulindelekile, ama-alkyl polyglycoside di- kanye ne-triglycerol ethers akhiwa ngaphezu kwe-ether ye-monoglycerol. Okunye ukusabela okwesibili ukuzifinyeza kwe-glycerol ukuze kwakheke ama-oligoglycerol akwazi ukusabela ne-alkyl polyglycoside ngendlela efanayo ne-glycerol. Okuqukethwe okuphezulu okunjalo kwama-oligomers aphezulu kungafiseleka ngokuphelele ngoba athuthukisa ngokwengeziwe i-hydrophilicity futhi ngakho-ke ngokwesibonelo ukuncibilika kwamanzi kwemikhiqizo. Ngemuva kokufakwa kwe-etherification, imikhiqizo ingancibilika emanzini futhi ifakwe i-bleach ngendlela eyaziwayo, isibonelo nge-hydrogen peroxide.

Ngaphansi kwalezi zimo zokusabela, izinga le-etherification lemikhiqizo lizimele kubude beketango le-alkyl le-alkyl polyglycoside esetshenzisiwe. Umfanekiso3 ubonisa okuqukethwe kwephesenti le-mono-,di- kanye ne-triglycerol ethers kungxube yomkhiqizo ongahluziwe wobude obune beketango le-alkyl. Impendulo esuka ku C₁₂ i-alkyl polyglycoside inikeza umphumela ojwayelekile. Ngokwe-chromatogram yegesi, ama-mono-,di- kanye ne-triglycerol ether akheka ngesilinganiso esicishe sibe ngu-3:2:1. Ingqikithi yokuqukethwe kwe-glycerol ethers icishe ibe ngu-35%.