Puas yog hypromellose ntuj?

Hypromellose, tseem hu ua hydroxypropyl methylcellulose (HPMC), yog ib qho polymer semisynthetic uas tau los ntawm cellulose, ib qho polymer ntuj uas pom muaj nyob rau hauv cov phab ntsa cell ntawm cov nroj tsuag. Txawm hais tias cellulose nws tus kheej yog ntuj, cov txheej txheem ntawm kev hloov kho nws kom tsim hypromellose cuam tshuam nrog cov tshuaj tiv thaiv, ua rau hypromellose ua ib qho semisynthetic compound.

Kev tsim cov hypromellose suav nrog kev kho cov cellulose nrog propylene oxide thiab methyl chloride los qhia cov hydroxypropyl thiab methyl pawg rau ntawm cov cellulose backbone. Qhov kev hloov pauv no hloov cov yam ntxwv ntawm cellulose, muab hypromellose nws cov yam ntxwv tshwj xeeb xws li kev yaj dej, peev xwm tsim zaj duab xis, thiab viscosity.

Txawm hais tias hypromellose tsis pom ncaj qha nyob rau hauv xwm, nws yog los ntawm ib qho chaw ntuj (cellulose) thiab suav tias yog biocompatible thiab biodegradable. Nws yog dav siv rau hauv cov tshuaj, cov khoom noj khoom haus, cov tshuaj pleev ib ce, thiab ntau yam kev siv hauv kev lag luam vim nws muaj kev nyab xeeb, kev hloov pauv tau yooj yim, thiab kev ua haujlwm.

Hauv kev xaus lus, thaum hypromellose yog ib qho semisynthetic compound, nws keeb kwm los ntawm cellulose, ib qho polymer ntuj, thiab nws cov biocompatibility ua rau nws yog ib qho khoom xyaw uas tau txais dav hauv ntau yam kev siv.