Igama elihlanganisiweyo le-hydroxyethyl cellulose

Igama elidityanisiweyo leHydroxyethyl Cellulose (HEC) libonisa ulwakhiwo lwayo lweekhemikhali kunye notshintsho olwenziwe kwi-cellulose yendalo. I-HEC yi-cellulose ether, oko kuthetha ukuba isuka kwi-cellulose ngenkqubo yeekhemikhali eyaziwa ngokuba yi-etherification. Ngokukodwa, amaqela e-hydroxyethyl afakwa kwi-cellulose backbone.

Igama le-IUPAC (International Union of Pure and Applied Chemistry) le-Hydroxyethyl Cellulose liza kusekelwa kwisakhiwo se-cellulose kunye namaqela e-hydroxyethyl ongezelelweyo. Isakhiwo seekhemikhali se-cellulose yi-polysaccharide eyinkimbinkimbi eyenziwe ziiyunithi ze-glucose eziphindaphindayo.

Ulwakhiwo lweekhemikhali zeHydroxyethyl Cellulose lungamelwa ngolu hlobo:

Kule meko:

• Iyunithi [-O-CH2-CH2-O-] imele umqolo weselulose.
• Amaqela [-CH2-CH2-OH] amele amaqela e-hydroxyethyl angeniswa nge-etherification.

Ngenxa yobunzima besakhiwo se-cellulose kunye neendawo ezithile ze-hydroxyethylation, ukubonelela ngegama le-IUPAC elicwangcisiweyo le-HEC kunokuba nzima. Eli gama lidla ngokubhekisa kutshintsho olwenziwe kwi-cellulose endaweni yokuqamba amagama athile e-IUPAC.

Igama elisetyenziswa rhoqo elithi “Hydroxyethyl Cellulose” libonisa zombini umthombo (cellulose) kunye notshintsho (amaqela e-hydroxyethyl) ngendlela ecacileyo nechazayo.