Ethyl cellulose solubility hauv ethanol

Ethyl cellulose yog ib qho hluavtaws polymer uas feem ntau siv hauv ntau yam lag luam, suav nrog tshuaj, khoom noj, thiab kev saib xyuas tus kheej. Ib qho ntawm cov khoom tseem ceeb ntawm ethyl cellulose yog nws cov solubility hauv cov kuab tshuaj sib txawv, uas yog qhov tseem ceeb rau nws cov kev siv ntau yam. Ethanol yog ib qho ntawm cov kuab tshuaj uas tuaj yeem siv los ua kom yaj ethyl cellulose.

Lub solubility ntawm ethyl cellulose nyob rau hauv ethanol nyob ntawm ntau yam xws li qib ntawm ethylation, molecular hnyav ntawm cov polymer, thiab qhov kub thiab txias ntawm cov kuab tshuaj. Feem ntau, ethyl cellulose nrog qib siab ntawm ethylation yog ntau dua soluble hauv ethanol piv rau cov uas muaj qib qis ntawm ethylation. Qhov hnyav molecular ntawm cov polymer kuj tseem ua lub luag haujlwm, vim tias cov khoom hnyav dua molecular polymers yuav xav tau ntau dua ntawm ethanol lossis lub sijhawm ntev dua kom yaj.

Qhov kub ntawm cov kuab tshuaj kuj cuam tshuam rau solubility ntawm ethyl cellulose hauv ethanol. Kev kub siab dua tuaj yeem ua rau kom muaj kev sib haum xeeb ntawm cov polymer vim muaj zog kinetic zog ntawm cov kuab tshuaj molecules, uas tuaj yeem pab ua kom tawg cov polymer chains thiab pab txhawb cov txheej txheem tawg. Txawm li cas los xij, qhov kub thiab txias yuav tsum tsis txhob dhau ib qho kev txwv vim nws yuav ua rau cov polymer degrade los yog poob nws cov qauv kev ncaj ncees.

Feem ntau, ethyl cellulose raug suav hais tias yog ntau dua soluble hauv ethanol piv rau lwm cov kuab tshuaj xws li dej, methanol, thiab acetone. Ethanol yog cov kuab tshuaj polar, thiab nws cov polarity tuaj yeem pab rhuav tshem cov hydrogen bonds ntawm polymer chains, cia cov polymer yaj.