Isakhiwo sekhemikhali se-Sethewose Ether Derivatives

I-Selessulose eves ikhuphe i-selsulose, i-polysacchacchacchacchaacchaacchaacchaacchaacchaackar yeseli efumaneka kwiindonga zeseli. Isakhiwo sekhemikhali se-seluplose e kanina iphawulwa ngokwazisa ngamaqela ahlukeneyo e-Ether ngokuguqula amaqela eekhemikhali ze-hydroxyl (---). Ezona ntlobo ziqhelekileyo zeselpulose

1. Hydroxypropyl methylcelceltulose (HPMC):
   • Ulwakhiwo:
     • I-HPMC idityanisiwe ngokufaka amaqela e-hydroxyl ye-seluplose kunye ne-hydroxypropyl (-och2chohch3) kunye ne-methyl (-och3) amaqela.
     • Inqanaba lokufakwa endaweni (DS) libonisa inani eliqhelekileyo lamaqela athathiweyo e-hydroxyl kwiyunithi nganye ye-glucose kwikhonkco leselselose.
2. I-carboxethmethyl seluplose(CMC):
   • Ulwakhiwo:
     • I-CMC iveliswa ngokwazisa i-carboxymethyl (-C2COOW) amaqela kwi-hydroxyl amaqela e-sellyulose.
     • I-carboxymethyl amaqela akhuphele i-solity yangaphakathi kunye nomlinganiso we-anionic kwikhonkco leselselose.
3. I-HYDROXYETHyL seluplose (Hec):
   • Ulwakhiwo:
     • I-HEC ithathiwe ngokufaka amaqela e-hydroxyl ye-seluplose ne hydroxyythl (-Och2ch2ch2ch2oh) amaqela.
     • Ibonisa ukuphuculwa kokuphuculwa kwamanzi kunye neepropathi ezinkulu.
4. I-Methyl Selelose (MC):
   • Ulwakhiwo:
     • I-MC iveliswa ngokwazisa amaqela e-methyl (-och3) ukuya kumaqela e-hydroxyl of sellyulose.
     • Iqhelekile isetyenziselwa ukugcinwa kwayo amanzi kunye nefilimu esenza ifilimu.
5. I-Ethyl Selelose (EC):
   • Ulwakhiwo:
     • I-EC ihambelana ngokufaka amaqela e-hydroxyl ye-seluplose ne-Ethyl (-Oc2h5) amaqela.
     • Kuyaziwa ukuba kusuka kwamanzi kwaye kuhlala kusetyenziswa ekuvelisweni kweengubo kunye neefilimu.
6. I-Hydroxypropyl seluplose (HPC):
   • Ulwakhiwo:
     • I-HPC ithathiwe ngokwazisa i-hydroxypropyl (-och2chohch3) amaqela kwiqela le-hydroxyl ye-seluplose.
     • Isetyenziswa njenge-binder, ifilimu yangaphambili, kunye ne-viscosity modifier.

Ulwakhiwo oluthile luyahluka kwi-Ether nganye ye-Ether ikhutshiwe ngokusekwe kuhlobo kunye nesidanga sokufaka endaweni yenkqubo yokutshintsha kwekhemikhali. Ukungeniswa kwala maqela e-ether kudlulisa iipropathi ezithile kwi-selupilose nganye, ibenza balungele izicelo ezahlukeneyo zeshishini.