Dodecyl trimethyl ammonium bromide Cas: 1119-94-4 Fari zuwa kashe-fari crystalline foda
Lambar Catalog | Saukewa: XD90240 |
Sunan samfur | Dodecyl trimethyl ammonium bromide |
CAS | 1119-94-4 |
Tsarin kwayoyin halitta | Saukewa: C15H34BrN |
Nauyin Kwayoyin Halitta | 308.341 |
Bayanin Ajiya | yanayi |
Harmonized Tariff Code | Farashin 29239000 |
Ƙayyadaddun samfur
Ma'amala na amphiphilic block copolymers na poly (ethylene oxide) -poly (propylene oxide) -poly (ethylene oxide) (PEO-PPO-PEO) rukuni tare da ƙananan ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin cuta na iya "sarrafawa" ta gaban zaɓaɓɓun barasa, tare da Ƙarfafa hulɗar da ke haifar da canje-canje masu mahimmanci a cikin (gauraye) ilimin halittar jiki na micelle, yayin da ƙananan hulɗar hulɗar ke haifar da nau'in micelle masu juna biyu. Halin da ƙarfin hulɗar tsakanin Pluronic P123 (EO20PO70EO20) da ƙananan ƙwayoyin kwayoyin halitta (anionic sodium dodecylsulfate, SDS, CDS, CDS) (cationic dodecyltrimethylammonium bromide, C12TAB) da (non-ionic polyoxyethylene (23) lauryl ether, Brij 35, C12EO23OH) ana sa ran dogara a kan partitioning na gajere, matsakaici da kuma dogon sarkar alcohols (ethanol, hexanol da decanol bi da bi) bincike ta amfani da tensiometry, pulsed-gradient spin-echo nuclear magnet resonance (PGSE-NMR) da kuma kananan-kwana neutron watsawa (SANS).Bayanan SANS don maganin P123 mai ruwa tare da ƙarin barasa sun kasance da kyau ta hanyar cajin core / harsashi samfurin. ga micell ilimin halittar jiki.Bugu da ƙari na surfactants ya haifar da ƙarami, oblate elliptical gauraye micelles a cikin rashi barasa.Ƙara ethanol zuwa waɗannan tsarin ya haifar da raguwa a cikin girman micelle, yayin da aka lura da ƙananan miceles a kan ƙari na sarkar barasa.Nazarin NMR ya ba da ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun micelle, da kuma rarraba sassa daban-daban a cikin micelle.
4-Nitrophenyl-N-acetyl-β- D-glucosaminide abu ne mai amfani don saurin kima mai launi na aikin N-acetyl-b-glucosaminidase a cikin fitsarin ɗan adam.Chromogenic β-Glucosaminidase substrate yana samar da maganin rawaya akan tsagewa, wanda aka yi amfani da shi musamman a cikin yeasts da molds.