igoa fa'afefiloi ole hydroxyethyl cellulose

Ole igoa tu'ufa'atasi ole Hydroxyethyl Cellulose (HEC) o lo'o atagia mai ai lona fausaga fa'apitonu'u ma suiga na faia ile cellulose fa'anatura. HEC o le cellulose ether, o lona uiga e mafua mai i le cellulose e ala i se vailaʻau faʻasolosolo e taʻua o le etherification. Aemaise lava, o vaega hydroxyethyl e faʻafeiloaʻi i luga o le cellulose tua.

O le IUPAC (International Union of Pure and Applied Chemistry) igoa mo Hydroxyethyl Cellulose o le a faʻavae i luga o le fausaga o le cellulose faʻatasi ai ma vaega faʻaopoopo hydroxyethyl. O le fa'asologa o vaila'au o le cellulose o se polysaccharide lavelave o lo'o fa'avaeina i iunite kulukose toe fai.

O le vailaʻau vailaʻau o le Hydroxyethyl Cellulose e mafai ona faʻatusalia e pei o:

I lenei fa'atusa:

• O le iunite [-O-CH2-CH2-O-] e fai ma sui o le cellulose ivi tua.
• O vaega [-CH2-CH2-OH] e fai ma sui o vaega o le hydroxyethyl na faʻafeiloaʻi e ala i le faʻamalosi.

Ona o le lavelave o le fausaga o le cellulose ma nofoaga patino o le hydroxyethylation, o le tuʻuina atu o se igoa IUPAC mo le HEC e mafai ona luʻitau. O le igoa e masani ona faasino i le suiga ua faia i le cellulose nai lo se igoa faapitoa IUPAC.

Ole igoa masani ole "Hydroxyethyl Cellulose" e atagia uma ai le puna (cellulose) ma le suiga (hydroxyethyl group) i se auala manino ma fa'amatala.