Polysorbate 80 yog tsim los ntawm ethoxylation ntawm cov molecule hu ua sorbitan. Sorbitan yog lub cev qhuav dej ntawm sorbitol, qab zib cawv uas tuaj yeem pom hauv qee cov txiv hmab txiv ntoo. Ethoxylation yog tshuaj lom neeg cov tshuaj tiv thaiv uas ethylene oxide ntxiv rau lub substrate, qhov no, sorbitan.
Polysorbate 80 ua li cas?
Polysorbate 80 kuj tuaj yeem tsim los ntawm reacting sorbitol thiab ethylene oxide ua ntej ces esterified nrog oleic acid , cov hauv qab no yog daim ntawv qhia luv luv (4): Tau txais kev sib xyaw ntawm sorbitol thiab sorbitan los ntawm ib nrab lub cev qhuav dej sorbitol. Ntxiv ethylene oxide rau qhov sib tov kom tau sorbitan polyethylene ether.
YPuas yog polysorbate 80 yog cov khoom xyaw ntuj?
Qhov no yog cov khoom siv uas tsis tshua paub, tseem hu ua Tween 80. … Nws yog tsim los ntawm polyethoxylated sorbitan (cov tshuaj sib txuas tau los ntawm lub cev qhuav dej ntawm qab zib cawv) thiab oleic acid., fatty acid pom nyob rau hauv tsiaj thiab zaub rog.
Cov khoom xyaw polysorbate 80 yog dab tsi?
Polysorbate 80 yog synthetic surfactant muaj li ntawm fatty acid esters ntawm polyoxyethylene sorbitan[1, 2]. Cov fatty acid muaj pes tsawg leeg feem ntau yog oleic acid, tab sis lwm cov fatty acids, xws li palmitic los yog linoleic acid, tej zaum yuav suav nrog (Fig. 1).
Polysorbate muab tau los ntawm dab tsi?
Taw qhia. Polysorbate (PS) yog hais txog ib tsev neeg ntawm amphipathic, nonionic surfactants uasyog muab los ntawm ethoxylated sorbitan los yog isosorbide (ib tug derivative ntawm sorbitol) esterified nrog fatty acids.
