PVP K 30 hmoov9003-39-8

Povidone K30

Qhov hnyav molecular ntawm K30 yog hais txog 40, 000, uas yog cov khoom siv dav tshaj plaws hauv homopolymer series.

Khoom npe:PVP-K30 Povidone K30 PVP K-30 hmoov

Lub npe tshuaj:1-vinyl-2-pyrrolidone homopolymer

CTFA lub npe:POLYVINYLPYRROLIDONE (Lub npe PVP)

CSC No.:9003-39-8

Molecular formula:(C₆H₉TSIS MUAJ)_n

Solubility thiab kev daws cov yam ntxwv

Zoo li txhua yam khoom lag luam homopolymer series, vim PVPK-30 muaj cov pab pawg hydrophilic thiab lipophilic hauv nws cov qauv molecular, nws tuaj yeem cuam tshuam nrog ntau cov kuab tshuaj, ua rau nws soluble hauv dej, thiab soluble hauv ntau hom cawv thiab carboxylic acids. , Amines thiab halogenated hydrocarbons thiab lwm yam organic solvents. Lub solubility tsuas yog txwv los ntawm nws tus kheej viscosity.

PVPK30, uas muaj peev xwm yaj nyob rau hauv ntau yam organic solvents, ua rau nws lug siv nyob rau hauv zus tau tej cov dej kho daim nyias nyias thiab yog ib tug zoo heev membrane porogen. Siv lub hollow fiber membrane ua los ntawm PVDF ua piv txwv, PVPK30, PVDF thiab lwm yam fillers yog co-solved nyob rau hauv organic solvents xws li DMF los yog DMAc los ua ib tug casting tov. Tom qab spinning thiab lwm yam txheej txheem tom ntej, nws yog gelled nyob rau hauv cov dej theem los yog cov cawv theem los tsim membrane filaments nrog uniform pore diameters.

Nto kev ua si

Lub molecule ntawm PVPK30 muaj ib tug butyrolactam qauv, uas muaj ib tug loj polar lactam pawg nrog ib tug dipole lub sij hawm ntawm 40, uas muaj peev xwm ua ib tug hydrophilic thiab polar-philic pawg. Tsis tas li ntawd, muaj cov non-polar methylene (-CH2-) thiab methine (-CH=) pawg ntawm lub nplhaib molecular thiab nyob rau hauv cov saw ntev kom nws lipophilic. Ib puag ncig ntawm ob qho kawg ntawm pawg dipole amide hauv cov molecule tsis zoo ib yam. Los ntawm cov qauv molecular, cov pa atom raug nthuav tawm, thaum kawg uas muaj N atom tsuas yog nyob ib puag ncig los ntawm pawg methyl thiab pawg methylene. nyob rau hauv. Cov qauv molecular ntawm PVPK30 muab nws nto kev ua si thiab yuav siv tau raws li ib tug polymer surfactant.

Cim npe nrov: PVP K 30 hmoov9003-39-8, Tuam Tshoj PVP K 30 hmoov9003-39-8 manufacturers, lwm tus neeg, Hoobkas