I-Physicochemical Properties ye-Alkyl Polyglycosides-Isigaba sokuziphatha
Kanambambili izinhlelo

Ukusebenza okuhle kakhulu kwama-surfactants empeleni kungenxa yemiphumela ethile yomzimba namakhemikhali. Lokhu kusebenza ngakolunye uhlangothi ezimpahleni zokusebenzelana futhi ngakolunye uhlangothi ekuziphatheni ekuxazululeni, njengokuziphatha kwesigaba. Uma kuqhathaniswa nama-fatty alcohol ethoxylates (alkyl polyglycol ethers), imingcele ye-physicochemical ye-alkyl glycosides ifundwe kancane kuze kube manje. Kulezi zifundo, i-alkyl polyglycosides itholakale inezakhiwo ezibalulekile, kwezinye izimo, ihluke kakhulu kwamanye ama-non-ionic surfactants. Imiphumela etholakele kuze kube manje ifinyezwa kanje. Umehluko obalulekile ohlobene nokuziphatha kwama-fatty alcohol ethoxylates wawumangalisa kakhulu.

Uma kuqhathaniswa nocwaningo oluhlelekile lwe-fatty alcohol ethoxylates, kuze kube manje kuphela izifundo ezimbalwa Ezibandakanya izinto ezihlukene zokuhlanzeka eziye zenziwa ekuziphatheni kwesigaba se-alkyl Polyglycosides. Uma uqhathanisa imiphumela etholiwe, kubalulekile ukukhumbula ukuthi Ubukhona bezingxenye zesibili bunomthelela omkhulu emininingwaneni yemidwebo yesigaba. Noma kunjalo, ukubhekwa okuyisisekelo kungenziwa mayelana nokuziphatha kwesigaba se-alkyl glycosides.Ukuziphatha kwesigaba se-C8-10 Alkyl polyglycoside(C8-10 APG) kuboniswe ku-(Figure1). Emazingeni okushisa angaphezu kuka-20℃, i-C8-10 APG ibonakala ifinyelela ekukhathazekeni okuphezulu kakhulu esigabeni se-isotropic lapho i-viscosity ikhuphuka kakhulu. Isigaba se-birefringent lyotropic sokuthungwa kwe-nematic kwakheka cishe ku-95% ngesisindo, esishintsha cishe ku-98% ngesisindo sibe isifunda esinamafu sezigaba ezimbili se-alkyl polyglycoside ewuketshezi. Emazingeni okushisa aphansi kakhulu, isigaba se-lamellar liquid crystalline sibhekwa futhi phakathi kuka-75 no-85% ngesisindo.
Ukuze uthole uchungechunge olufushane lwe-n-octyl-β-D-glucoside, umdwebo wesigaba uphenywe ngokuningiliziwe ngu-Nilsson et al. kanye noSakya et al. izigaba ngazinye zazibonakala eduze Izindlela ezifana ne-NMR kanye ne-angle encane ye-X-ray scattering(SAXS). Umfanekiso wesi-2 ubonisa ukulandelana kwesigaba. Emazingeni okushisa aphansi, i-hexagonal, i-cubic futhi ekugcineni isigaba se-lamellar sibonwa ngokuqukethwe okwandayo kwe-surfactant. Umehluko maqondana Nomdwebo wesigaba se-C8-10 se-alkyl polyglycoside (Umfanekiso 1) ungachazwa ngomehluko wokusikeka kobude beketango le-alkyl kanye nenani elihlukile lamayunithi e-glucose ku-molecule (bona ngezansi).