Qhov sib txawv tseem ceeb ntawm polyethylene glycol thiab propylene glycol yog polyethylene glycol yog ib qho polymer, hos propylene glycol yog ib qho molecular compound uas tuaj yeem hu ua diol.
Polyethylene glycol thiab propylene glycol yog cov organic tebchaw tseem ceeb. Polyethylene glycol yog ib qho polymer compound tau los ntawm cov roj av, thiab nws cov qauv tuaj yeem qhia tau tias yog H-(O-CH2-CH2) n-OH. Propylene glycol yog cov kua nplaum, tsis muaj xim, muaj cov tshuaj formula CH3CH(OH)CH2OH.
YPolyethylene Glycol yog dab tsi?
Polyethylene glycol yog cov khoom siv polymer uas muab los ntawm cov roj av, thiab nws cov qauv tuaj yeem qhia tau tias H-(O-CH2-CH 2)n-OH. Muaj ntau daim ntawv thov ntawm cov tshuaj no los ntawm cov ntawv thov kev lag luam mus rau tshuaj.
Daim duab 01: Cov Qauv Tshuaj ntawm Polyethylene Glycol
Cov ntawv thov ntawm polyethylene glycol suav nrog kev siv nws los ua ib qho ntawm cov tshuaj laxatives, ua ib qho ntxiv, hauv cov tshuaj los kho qhov tsis zoo, fuse axons, ua cov txheej lubricating rau ntau qhov chaw hauv aqueous thiab non-aqueous. ib puag ncig, tsim kom muaj siab osmotic siab, raws li lub polar nyob ruaj ruaj theem rau roj chromatography, raws li surfactants, raws li ib tug crowing tus neeg sawv cev nyob rau hauv biology, mloog zoo rau cov kab mob nyob rau hauv virology, thiab lwm yam.
Polyethylene glycol yog kev lom neeg tsis muaj zog thiab pom zoo los ntawm FDA. Ntxiv mus, muaj qee qhov kev tshawb fawb kev tshawb fawb tsis tu ncua txog kev tsis haum tshuaj cuam tshuam nrog cov tshuaj no ntxiv hauv cov khoom noj, tshuaj pleev ib ce, tshuaj, thiab lwm yam.
thawj qhov khoom ntawm polyethylene glycol yog xyoo 1859 los ntawm A. V. Lourenco thiab Charles Adolphe Wurtz. Tam sim no, peb tuaj yeem tsim cov tshuaj no los ntawm kev sib cuam tshuam ntawm ethylene glycol lossis ethylene glycol oligomers.
YPropylene Glycol yog dab tsi?
Propylene glycol yog cov kua nplaum, tsis muaj xim, muaj cov tshuaj formula CH3CH(OH)CH2OH. Nws yog odorless tab sis faintly qab zib tasting. Cov tshuaj no muaj ob pawg cawv ua haujlwm, yog li peb tuaj yeem muab nws lub npe diol. Feem ntau, propylene glycol yog miscible nrog cov kuab tshuaj sib txawv xws li dej, acetone, thiab chloroform. Feem ntau, cov kua dej no tsis ua rau khaus tab sis muaj qhov tsis zoo heev.
Daim duab 02: Cov Qauv Tshuaj ntawm Propylene Glycol
Propylene glycol feem ntau yog tsim los ua cov khoom siv loj rau kev siv zaub mov, tshuaj pleev ib ce, thiab chaw muag tshuaj. Qee zaum, peb hu cov khoom no ua alpha-propylene glycol kom paub qhov txawv ntawm propane-1, 3-diol.
Peb tuaj yeem npaj cov khoom sib xyaw no hauv ob txoj hauv kev: kev tsim khoom lag luam thiab kev sim khoom. Industrially, peb tuaj yeem tsim propylene glycol los ntawm propylene oxide. Txawm li cas los xij, hauv chav kuaj, feem ntau txoj hauv kev rau kev tsim khoom no suav nrog txoj kev fermentation.
Muaj ntau daim ntawv thov ntawm propylene glycol: siv nws los ua khoom noj rau kev tsim cov polymers, ua ib feem ntawm qee yam khoom noj, ua kua dej tiv thaiv, tsim cov luam yeeb, thiab lwm yam.
Qhov txawv ntawm Polyethylene Glycol thiab propylene Glycol yog dab tsi?
Polyethylene glycol thiab propylene glycol yog cov organic tebchaw tseem ceeb. Polyethylene glycol yog ib qho polymer compound tau los ntawm cov roj av, thiab cov qauv tuaj yeem qhia tau tias yog H-(O-CH2-CH2) n-OH, thaum propylene glycol yog cov kua nplaum, tsis muaj xim uas muaj cov tshuaj formula CH3CH(OH)CH2OH. Qhov sib txawv tseem ceeb ntawm polyethylene glycol thiab propylene glycol yog polyethylene glycol yog cov khoom siv polymer, hos propylene glycol yog ib qho molecular compound uas tuaj yeem hu ua diol.
Cov hauv qab no qhia txog qhov sib txawv ntawm polyethylene glycol thiab propylene glycol hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Polyethylene Glycol vs Propylene Glycol
Polyethylene glycol yog cov khoom siv polymer muab los ntawm cov roj av, thiab cov qauv tuaj yeem qhia tau tias H-(O-CH2-CH2)n-OH. Propylene glycol yog cov kua nplaum, tsis muaj xim, muaj cov tshuaj formula CH3CH(OH)CH2OH. Qhov sib txawv tseem ceeb ntawm polyethylene glycol thiab propylene glycol yog polyethylene glycol yog cov khoom siv polymer, hos propylene glycol yog ib qho molecular compound uas tuaj yeem hu ua diol.
