Qhov Tseem Ceeb Qhov txawv - Acrylamide vs Polyacrylamide
Acrylamide thiab Polyacrylamide yog ob lub amide molecules, tab sis acrylamide yog ib qho molecule thiab Polyacrylamide yog ib tug polymer (lub loj molecule uas yog tsim los ntawm monomers) uas yog tsim los ntawm cov monomers (ib tug molecule uas yuav tsum tau bonded rau lwm yam zoo tib yam. molecules los tsim ib tug polymer) ntawm acrylamide. Hauv lwm lo lus, qhov sib txawv tseem ceeb ntawm acrylamide thiab polyacrylamides yog tias polyacrylamide yog ib qho polymer thiab acrylamide yog lub tsev sub siv los tsim cov molecules polyacrylamide. Yog li, acrylamide yog suav tias yog ib qho me me molecule thaum polyacrylamide muaj qhov hnyav molecular. Vim qhov tseeb no, lawv cov khoom siv tshuaj thiab cov ntawv thov kev lag luam sib txawv ntawm ib leeg.
YAcrylamide yog dab tsi?
Acrylamide tseem hu ua acrylic amide, thiab nws lub npe IUPAC yog prop-2-enamide. Nws yog ib qho amide nrog cov mis molecular C3H5NO. Nws yog pom raws li ib tug dawb crystalline khoom uas decomposes nyob rau hauv lub xub ntiag ntawm acids, bases, oxidizing neeg sawv cev, hlau thiab hlau ntsev. Qhov tsis muaj cua sov decomposition ntawm acrylamide ua rau tsim cov ammonia whereas thermal decomposition ua carbon monoxide (CO), carbon dioxide (CO 2), thiab oxides ntawm nitrogen. Nws yog dej soluble thiab zoo li soluble hauv ethanol, ether, thiab chloroform. Ib txoj hauv kev tsim cov acrylamide yog los ntawm hydrolysis ntawm acrylonitrile los ntawm nitrile hydratase.
YPolyacrylamide yog dab tsi?
Polyacrylamide yog ib qho polymer molecule uas yog tsim los ntawm cov polymerization ntawm acrylamide units. Hauv lwm lo lus, monomer siv los tsim polyacrylamide yog acrylamide. Nws yog luv luv li PAM, thiab nws lub npe IUPAC yog poly (2-propenamide) lossis poly (1-carbamoylethylene). Daim ntawv hydrated ntawm polyacrylamide yog cov dej nqus dej thiab tsim cov gel muag thaum nws hydrated. Nws yog siv rau hauv kev lag luam daim ntawv thov xws li polyacrylamide gel electrophoresis thiab tsim cov tshuaj tiv thaiv mos.
Qhov txawv ntawm Acrylamide thiab Polyacrylamide yog dab tsi?
Molecular Formula:
Acrylamide: Cov mis molecular ntawm acrylamide yog C3H5NO.
Polyacrylamide: Polyacrylamide molecules yog tsim los ntawm acrylamide molecules los ntawm polymerizing nyob rau hauv yooj yim linear daim ntawv los yog cross-linked daim ntawv.
Khoom ntawm Acrylamide thiab Polyacrylamide:
Acrylamide: Acrylamide yog cov xim tsis muaj xim, tsis muaj ntxhiab tsw heev dej soluble crystalline amide uas tuaj yeem ua polymerized sai heev los ua cov tshuaj polymeric. Nws raug suav hais tias yog carcinogen, tawv nqaij khaus, thiab tej zaum yuav ua rau mob qog noj ntshav hauv daim tawv nqaij.
Polyacrylamide: Polyacrylamide yog cov dej nqus dej molecule thiab tsim cov gel mos thaum nws hydrated. Cov cuab yeej no muaj ntau qhov zoo hauv qee cov ntawv thov xws li kev tsim cov khoom muag muag muag.
Kev Siv Acrylamide thiab Polyacrylamide:
Acrylamide: Acrylamide yog siv ntau los tsim ntau yam polymers. Tsis tas li ntawd, nws yog siv los ua thickening lossis flocculating tus neeg sawv cev hauv grout, cement los yog hauv cov dej phwj / dej kho cov txheej txheem, tshuaj tua kab, tshuaj pleev ib ce, kev tsim khoom qab zib, ore ua, ntim khoom noj, tiv thaiv av yaig, yas thiab ntawv tsim. Ntxiv mus, nws kuj yog siv los ua tshuaj nruab nrab hauv kev tsim N-methylol acrylamide thiab N-butoxyacry. Nws kuj tseem siv rau hauv qee qhov av potting ib yam nkaus.
Polyacrylamide: Polyacrylamide feem ntau yog siv los flocculate cov khoom hauv cov kua. Cov txheej txheem no yog siv rau hauv kev kho dej, tshuaj ntsuam luam ntawv, thiab ua ntawv. Lwm qhov kev siv ntawm polyacrylamide yog siv los ua cov av txias, nquag siv hauv horticultural thiab kev ua liaj ua teb los tswj cov av yaig. Tsis tas li ntawd, nws yog feem ntau siv nyob rau hauv cov ntaub ntawv ntawm molecular biology raws li ib tug nruab nrab rau electrophoresis ntawm proteins thiab nucleic acids. Tsis ntev los no nws tau raug txheeb xyuas tias yog sub-dermal filler hauv kev phais ntsej muag. Cov saw ncaj ncaj los ntawm polyacrylamide yog siv los ua cov thickener thiab tshem tawm tus neeg sawv cev. Nws kuj yog siv los tsim cov lo ntsiab muag muag muag.
