Ni ubuhe bwoko bwa chimique ya selile ya polyanionic

Polyanionic selulose (PAC) ni imiti ihindura imiti ya selile, ikaba isanzwe ibaho polysaccharide iboneka murukuta rw'utugingo ngengabuzima. PAC isanzwe ikoreshwa mu nganda zitandukanye, harimo gucukura peteroli, gutunganya ibiryo, imiti, no kwisiga, kubera imiterere yihariye y’imiti. Ibigize imiti, imiterere, nibintu bituma iba inyongera yingenzi mubikorwa byinshi.

Imiterere ya Cellulose:

Cellulose ni umurongo wa polysaccharide ugizwe no gusubiramo ibice bya β-D-glucose ya molekile ihujwe na β (1 → 4) glycosidic. Buri glucose igizwe nitsinda rya hydroxyl (-OH), ningirakamaro muguhindura imiti.

Guhindura imiti:

Polyanionic selulose ikorwa hifashishijwe imiti ihindura selile. Igikorwa cyo guhindura kirimo kwinjiza amatsinda ya anionic kumugongo wa selile, ukayitanga hamwe nibintu byihariye. Uburyo busanzwe bwo guhindura selile harimo etherification na esterification reaction.

Amatsinda ya Anionic:

Amatsinda ya anionic yongewe kuri selile mugihe cyo guhindura atanga ibintu bya polyanionic kuri polymer yavuyemo. Aya matsinda arashobora gushiramo karubasi (-COO⁻), sulfate (-OSO₃⁻), cyangwa fosifate (-OPO₃⁻). Guhitamo itsinda rya anionic biterwa nibintu byifuzwa hamwe nibisabwa bya selile ya polyanionic.

Ibigize imiti ya PAC:

Imiterere yimiti ya polyanionic selulose iratandukanye bitewe nuburyo bwihariye bwa synthesis hamwe nuburyo bugenewe gukoreshwa. Nyamara, muri rusange, PAC igizwe cyane cyane na selulose umugongo hamwe nitsinda rya anionic rifatanije. Urwego rwo gusimbuza (DS), rwerekana impuzandengo yumubare wamatsinda ya anionic kuri buri gice cya glucose, irashobora gutandukana kandi ikagira ingaruka cyane kumiterere ya PAC.

Urugero Imiterere yimiti:

Urugero rwimiterere yimiti ya polyanionic selile hamwe nitsinda rya karubasi niyi ikurikira:

Imiterere ya Cellulose ya Polyanionic

Muri ubu buryo, uruziga rw'ubururu rugereranya glucose yibice byumugongo wa selile, naho uruziga rutukura rugereranya amatsinda ya anionic ya carboxylate (-COO⁻) yometse kuri bimwe mubice bya glucose.

Ibyiza:

Polyanionic selulose yerekana ibintu byinshi byifuzwa, harimo:

Guhindura Rheologiya: Irashobora kugenzura ubukonje no gutakaza amazi mubikorwa bitandukanye, nko gucukura amazi munganda zamavuta.

Kubika amazi: PAC irashobora gukurura no kugumana amazi, ikagira akamaro mubicuruzwa bisaba kugenzura ubushuhe, nkibicuruzwa byibiribwa cyangwa imiti yimiti.

Igihagararo: Itezimbere ituze nimikorere muburyo butandukanye mukurinda gutandukanya icyiciro cyangwa guteranya.

Biocompatibilité: Mubisabwa byinshi, PAC ni biocompatable kandi idafite uburozi, bigatuma ikoreshwa muburyo bwa farumasi nibicuruzwa byibiribwa.

Porogaramu:

Polyanionic selulose isanga ibisabwa mubikorwa bitandukanye:

Amazi yo gucukura amavuta: PAC ninyongera yingenzi mugucukura ibyondo kugirango igabanye ubukonje, gutakaza amazi, no kubuza shale.

Gutunganya ibiryo: Ikoreshwa nkibibyimbye, stabilisateur, cyangwa ibikoresho byo kubika amazi mubicuruzwa byibiribwa nka sosi, imyambarire, n'ibinyobwa.

Imiti yimiti: PAC ikora nkibihuza, bidahwitse, cyangwa bihindura ibishishwa muburyo bwa tablet, guhagarikwa, hamwe na cream yibanze.

Amavuta yo kwisiga: Ikoreshwa mubicuruzwa byita kumuntu nka cream, amavuta yo kwisiga, hamwe na shampo kugirango bigabanye ubukonje no gutuza.

Gukora:

Igikorwa cyo gukora selile ya polyanionic kirimo intambwe nyinshi:

Inkomoko ya Cellulose: Cellulose ikomoka mubiti cyangwa ibiti by'ipamba.

Guhindura imiti: Cellulose ikora etherification cyangwa esterification reaction kugirango itangire amatsinda ya anionic mubice bya glucose.

Isuku: selile yahinduwe isukurwa kugirango ikureho umwanda n'ibicuruzwa.

Kuma no gupakira: selulose isukuye polyanionic yumishijwe kandi ipakirwa kugirango ikwirakwizwe mu nganda zitandukanye.

polyanionic selulose ni chimique yahinduwe ikomoka kuri selile hamwe nitsinda rya anionic rifatanije numugongo wa selile. Ibigize imiti, harimo ubwoko nubucucike bwamatsinda ya anionic, bigena imiterere yabyo hamwe nuburyo bukoreshwa mubikorwa bitandukanye nko mu gucukura peteroli, gutunganya ibiryo, imiti, no kwisiga. Binyuze mu kugenzura neza synthèse yayo no kuyikora, selile ya polyanionic ikomeje kuba inyongeramusaruro mubicuruzwa byinshi nibikorwa kwisi yose.