labarai

Ta hanyar polyfunctionality na carbohydrates, acid catalyzed Fischer halayen suna da sharadi don samar da cakuda oligomer wanda a cikin matsakaici fiye da ɗaya naúrar glycation yana haɗe zuwa microsphere barasa. Matsakaicin adadin raka'a na glycose da ke da alaƙa da ƙungiyar barasa an kwatanta shi azaman (matsakaici) digiri na polymerization (DPI. Figure2 yana nuna rarrabawa ga alkyl polyglycoside tare da DP = 1.3. A cikin wannan cakuda, ƙaddamarwa na mutum oligomers (mono- ,di-,tri-,-, glycoside) ya fi dogara ne akan rabon glucose zuwa barasa a cikin cakudawar amsawa. A cikin rarraba ma'auni, DP- don tsayin sarkar alkyl da aka ba da shi - yana daidaita da kyau tare da kayan samfurori na asali, irin su polarity, solubility, da dai sauransu. polyfunctional monomers kuma za a iya amfani da alkyl polyglucosides Wannan gyara na rarraba Flory yana bayyana alkyl polyglycosides a matsayin cakuda oligomers da aka rarraba.
Abubuwan da ke cikin nau'in nau'in mutum ɗaya a cikin cakuda oligomer yana raguwa tare da ƙara darajar polymerization. Rarraba oligomer da aka samu ta wannan tsarin lissafin ya yi daidai da sakamakon nazari (duba Babi na 3). A cikin sauƙi, matsakaicin matakin polymerization (DP) na gaurayawan alkyl polyglycoside za a iya ƙididdige su daga mole kashi pi na nau'in oligomeric "i" a cikin cakuda glycoside (Hoto 2)
Hoto 2. Yawan rarraba dodecyl glycoside oligomers a cikin DP


Lokacin aikawa: Satumba 28-2020