Polyethylene Glycol/Mzere/CAS:25322-68-3
Kufotokozera Kwachidule:
Dzina la Mankhwala: Polyethylene Glycol
CAS:25322-68-2
MF:(C2H4O)nH2O
MW:0
KAYAMBIDWE:
Kufotokozera:
Ma polyethylene glycols ndi banja la ma polima olunjika omwe amapangidwa ndi kuyamwa kwa madzi komwe kumawonjezeredwa ku ethylene. Fomula ya ma molekyulu ndi (C2H4O)multH2O pomwe mult imayimira kuchuluka kwa magulu a oxyethylene. Kulemera kwa ma molekyulu kumatha kuyambira 200 mpaka mamiliyoni angapo mogwirizana ndi kuchuluka kwa magulu a oxyethylene. Zipangizo zolemera kwambiri (100 000 mpaka 5 000 000) zimatchedwanso ma polyethylene oxides. Kulemera kwapakati kwa ma molekyulu a chinthu chilichonse cha polyethylene glycol kumakhala mkati mwa malire ochepa (°5%). Chiwerengero cha ma unit a ethylene oxide kapena kulemera kwawo koyerekeza kwa ma molekyulu (monga PEG-4 kapena PEG-200) nthawi zambiri chimatanthauza mayina a ma polyethylene glycols enaake. Ma polyethylene glycols okhala ndi kulemera kwa amolecular kosakwana 600 ndi amadzimadzi, pomwe omwe ali ndi kulemera kwa ma molekyulu 1000 ndi kupitirira apo ndi olimba. Zipangizozi sizosinthasintha, zimasungunuka m'madzi, sizimakoma, komanso sizimanunkhira. Amasakanikirana ndi madzi, ma alcohols, ma esters, ma ketones, zosungunulira zonunkhira, ndi ma hydrocarbons a chlorinated, koma amasakanikirana ndi alkanes, paraffins, waxes, ndi ethers.
Kufotokozera
| Chinthu | Kufotokozera |
| Malo osungunuka | 64-66 °C |
| Malo otentha | >250°C |
| Kuchulukana | 1.27 g/mL pa 25 °C |
| Kuchuluka kwa zinthu zambiri | 400-500kg/m3 |
| Kuchuluka kwa nthunzi | >1 (motsutsana ndi mpweya) |
| Kupanikizika kwa nthunzi | <0.01 mm Hg (20 °C) |
| Chizindikiro cha refractive | n20/D 1.469 |
| Kutentha kwa malo osungira. | 2-8°C |
Kagwiritsidwe Ntchito
Polyethylene Glycol ndi chinthu chomangirira, chophikira, chobalalitsira, chothandizira kukoma, komanso chopangira pulasitiki chomwe ndi madzi owoneka bwino, opanda mtundu, okhuthala, osakanikirana ngati parafini (yoyera, ngati sera, kapena flakes), okhala ndi pH ya 4.0–7.5 mu kuchuluka kwa 1:20. Chimasungunuka m'madzi (mw 1,000) ndi zinthu zambiri zachilengedwe.
Polyethylene glycol (PEG) ndi chinthu chomangirira, chosungunulira, chopaka pulasitiki, komanso chofewetsa chomwe chimagwiritsidwa ntchito kwambiri popanga zodzoladzola ndi mafuta odzola. Ma Peg ndi osavuta kusungunuka mpaka kulemera kwa mamolekyu 500. Kupitilira kulemera kumeneku, madzi omwe amalowa m'thupi amachepa.
Amagwiritsidwa ntchito limodzi ndi kaboni wakuda kuti apange chophatikiza chowongolera.1 Ma nanospheres a polymer a poly(ethylene glycol) adagwiritsidwa ntchito popereka mankhwala.
Mamolekyu a Poly(ethylene Glycol) a ma monomers pafupifupi 2000. Poly(ethylene Glycol) imagwiritsidwa ntchito m'njira zosiyanasiyana kuyambira chemistry yamafakitale mpaka chemistry yachilengedwe. Kafukufuku waposachedwa wasonyeza kuti PEG ili ndi mphamvu yothandiza njira yobwezeretsa kuvulala kwa msana, kuthandiza njira yoyendetsera mitsempha mwa nyama. Mu makoswe, yawonetsedwa kuti imathandizira kukonza ma axon odulidwa a sciatic, kuthandiza kubwezeretsanso kuwonongeka kwa mitsempha. Imapangidwa m'mafakitale ngati mafuta opaka pamalo osiyanasiyana kuti achepetse kukangana. PEG imagwiritsidwanso ntchito pokonzekera machitidwe oyendera ma vesicle pogwiritsa ntchito njira zodziwira matenda kapena njira zoperekera mankhwala.
Kulongedza ndi Kutumiza
200KG/Drum kapena malinga ndi zomwe makasitomala amafuna.
Ndi katundu wamba ndipo amatha kutumizidwa kudzera m'nyanja ndi mlengalenga
Sungani ndi kusunga
Nthawi yosungiramo zinthu: Miyezi 24 kuyambira tsiku lopangidwa m'maphukusi oyambirira osatsegulidwa, osungidwa pamalo ozizira komanso ouma, kutali ndi dzuwa, madzi.
Nyumba yosungiramo zinthu zopumira mpweya, Youma pang'ono, Yosiyana ndi ma oxidants, ma acid.
