title: [Surface-active agents from the group of polyoxyethylated glycerol esters of fatty acids. Part II. Chromatographic analysis and basic viscosity parameters as a estimate criterion of efficiency of catalytic oxyethylation of Lard's fractions (Adeps suillus FP VII)].
abstract: The catalytic oxyethylation products of Lard's fractions and Tweens--as a reference products, were analised by chromatographic analysis HPLC and GPC. The above part was determination average molecular weights dispersion (Mw I Mn) and the content of polyethylene glycols (PEG), which are obtained during catalytic oxyethylation, and determination iodine value of the product (L(J2)). Viscosity measurements were carried out by Ubelohde method and enabled determination of basic viscosity and hydrodynamic parameters. The obtained results indicate that, comparing reference products--polysorbates, Tweens, products of triglycerides oxyethylation contain significantly less, in some cases very small amount of polyethylene glycols (PEG), and also maintained a high amount of unsaturated fatty acids (oleic acid), which is proven by the iodine value. Numerical value n(s) /H2O/ confirms important disparity of micells palisad structure, which are created based on oxyethylated triglycerides nTE = 40. That indicates significant solubilization possibilities of their aqueous solutions Cexp < or = Cmc.
authors: Apteka Szpitalna--Pracownia Leku Cytotoksycznego Wojewódzkiego Szpitala.
authors: Jowita Barbara
authors: JB
authors: Piotrowska
authors: Michał Jakub
authors: MJ
authors: Nachajski
authors: Marek
authors: M
authors: Lukosek
authors: Jacek
authors: J
authors: Kosno
authors: Marian Mikołaj
authors: MM
authors: Zgoda
mesh_terms: D002384:Catalysis; D002845:Chromatography; D004041:Dietary Fats / Q000032:analysis*; D008970:Molecular Weight; D011092:Polyethylene Glycols / Q000737:chemistry*; D011136:Polysorbates / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*; D014783:Viscosity
chemical_list: D004041:Dietary Fats; D011136:Polysorbates; D012996:Solutions; D013501:Surface-Active Agents; D011092:Polyethylene Glycols; C029310:lard