Polyethylene Glycol/PEG/CAS: 25322-68-3
Ibisobanuro bigufi:
Izina ry'igicuruzwa: Polyethylene Glycol
CAS: 25322-68-2
MF:(C2H4O)nH2O
MW:0
IMITERERE:
Incamake:
Polyethylene glycols ni umuryango wa polymeri zigororotse zigizwe n'uburyo bwo gushonga kw'ibanze hamwe n'ibice bisubirwamo bya ethylene oxide bikongerwa muri ethylene. Formula ya molekile ni (C2H4O)multH2O aho mult igaragaza umubare mpuzandengo w'amatsinda ya oxyyethylene. Uburemere bwa molekile bushobora kuva kuri miliyoni 200 kugeza kuri miliyoni nyinshi bihuye n'umubare w'amatsinda ya oxyyethylene. Ibikoresho bifite uburemere bwa molekile nyinshi (100 000 kugeza 5 000 000) nabyo byitwa polyethylene oxides. Uburemere mpuzandengo bwa molekile y'ibicuruzwa bya polyethylene glycol runaka buri mu rugero ruto cyane (°5%). Umubare w'ibice bya ethylene oxide cyangwa uburemere bwabyo bwa molekile (urugero, PEG-4 cyangwa PEG-200) akenshi bigaragaza izina rya polyethylene glycols. Polyethylene glycols ifite uburemere bwa amolecular buri munsi ya 600 ni amazi, mu gihe ibifite uburemere bwa molekile 1000 no hejuru yayo ari bikomeye. Ibi bikoresho ntibihindagurika, ntibishonga, ntibiryoha, kandi ntibihumura. Bishobora kuvangwa n'amazi, alkoholi, esters, ketones, aromatique, na hydrocarbones chlorine, ariko ntibishobora kuvangwa na alkanes, parafini, waxes, na ethers.
Ibisobanuro
| Ikintu | Ibisobanuro |
| Aho gushonga | 64-66 °C |
| Aho kubira | >250°C |
| Ubucucike | 1.27 g/mL kuri 25 °C |
| Ubucucike bw'umubyimba | 400-500kg/m3 |
| Ubucucike bw'umwuka ushyushye | >1 (ugereranije n'umwuka) |
| Umuvuduko w'umwuka ushyushye | <0.01 mm Hg (20 °C) |
| Igipimo cy'ikirahure | n20/D 1.469 |
| Ubushyuhe bwo kubika. | 2-8°C |
Imikoreshereze
Polyethylene Glycol ni ikintu gifunga, gikingira, gikwirakwiza, gitera uburyohe, kandi gitera impumuro, kikaba ari amazi asobanutse, adafite ibara, afite ubwinshi, asa na parafini (umweru, isa n'ibisigazwa), gifite pH ya 4.0–7.5 mu gipimo cya 1:20. Irashongesha mu mazi (mw 1.000) no mu bintu byinshi bishongesha mu bimera.
Polyethylene glycol (PEG) ni umuti ufata, uvanga, uhindura imiterere y'ibintu mu buryo bwa pulasitiki, kandi ugabanya ubushyuhe ukoreshwa cyane mu mavuta yo kwisiga no mu mavuta yo mu rwego rwa farumasi. Amavuta afite ubushyuhe bugera kuri 500. Uretse ubwo buremere, amazi anyuramo aragabanuka.
Ikoreshwa hamwe n'umukara wa karuboni kugira ngo habeho imvange ikora.1 Ingano za polimeri za poly (ethylene glycol) zakoreshejwe mu gutanga imiti.
Molekile za Poly (ethylene Glycol) zigizwe na monomer zigera ku 2000. Poly (ethylene Glycol) ikoreshwa mu bikorwa bitandukanye kuva kuri chimie y'inganda kugeza kuri chimie y'ibinyabuzima. Ubushakashatsi buherutse bwerekanye ko PEG ifite ubushobozi bwo gufasha mu nzira yo kuvura imvune z'umugongo, igafasha mu nzira yo kuyobora imitsi mu nyamaswa. Mu mbeba, byagaragaye ko ifasha mu gusana axons zaciwe, igafasha mu kugarura ibyangiritse by'imitsi. Ikorwa mu nganda nk'ikintu gisiga amavuta ku buso butandukanye kugira ngo igabanye gushwanyagurika. PEG ikoreshwa kandi mu gutegura sisitemu zo gutwara vesicle hamwe no gukoreshwa mu gusuzuma cyangwa mu buryo bwo gutanga imiti.
Gupakira no Kohereza
200KG/Ingoma cyangwa nk'uko umukiriya abikeneye.
Ni iy'ibicuruzwa rusange kandi ishobora gutangwa binyuze mu nyanja no mu kirere
Bika kandi ubibike
Igihe cyo kubika: Amezi 24 uhereye igihe byakorewe mu ipaki y’umwimerere idafunguye, bibitswe ahantu hakonje kandi humutse, kure y’izuba ryinshi, amazi.
Ububiko bufite umwuka uhagije, Butuma ibintu bishya bishyuha, butandukanyijwe n'ibikomoka kuri okiside, aside.
