| Kev piav qhia |
2,2-Bis(3-amino-4-hydroxyphenyl) hexafluoropropane (6FAP,83558-87-6) yog dawb crystalline hmoov. Nws qhov kub thiab qhov ceev yuav tsum yog 411.3 ± 45. 0 degree thiab 1.545 ± 0.06 g / cm3, feem. Nws yog me ntsis soluble hauv DMSO thiab methanol.Cov khoom no tsis muaj tshuaj lom thiab tuaj yeem khaws cia ntawm chav tsev kub kom deb ntawm lub teeb thiab cua. |
| Synthesis |
30 g ob (3-nitro-4-hydroxyphenyl) hexafluoropropanes poob rau hauv 1000 mL autoclave, ntxiv 300 g DMF thiab 1.5 g palladium / carbon (qhov loj ntawm palladium hauv palladium / carbon yog 5%), nias hydrogen mus rau 1MPa, qhib nplawm thiab sov li 70 degree, nres cov tshuaj tiv thaiv tom qab ob (3-nitro-4-hydroxyphenyl) hexafluoropropane cov ntsiab lus＜0.1%, lub hom phiaj khoom ob ( 3-amino-4-hydroxyphenyl) hexafluoropropane Fluoropropane roj theem cov ntsiab lus yog 98%, thiab lub kaw lus yog xim dub, thiab qhov kub ntawm qhov tseem yog qis dua rau chav tsev kub, lim, thiab cov lim dej yog de-dried nyob rau hauv txo siab ntawm 70-80 degree kom tau bis({19}}amino-4-hydroxyphenyl) hexafluoropropane crude khoom, cov khoom crude yog recrystallized, recrystallization hnyav yog dej thiab DMF, thiab qhov loj piv ntawm bis (3-amino-4-hydroxyphenyl) hexafluoropropane, dej thiab DMF yog 1: 4: 2.
Ua ntej, cov bis (3-nitro-4-hydroxyphenyl) hexafluoropropane crude khoom yog tov nrog cov recrystallization hnyav kom nce qhov kub thiab txias mus rau 60 degree thiab do, thiab ces qhov kub thiab txias yog txo mus rau {{3} } degree rau crystallization, lim, Tom qab ziab, 25.4 g ntawm ntshiab bis (3-nitro-4-}hydroxyphenyl) hexafluoropropane tau txais. Cov txiaj ntsig ntawm bis (3-amino-4-hydroxyphenyl) hexafluoropropane yog 98.3% thiab purity yog 99.6%. 1H-NMR (400MHz, D6-DMSO) δ (ppm): 4.64 (s, 4H), 6.42 (d, 2H), 7.57 (s, 2H), 6.65 (d, 2H), 9.36 (s , 2 H ib). 19F-NMR (400MHz, D6-DMSO) δ (ppm): -62.78. [1]. |
| Lub cev muaj zog |
Dawb hmoov |
| Siv |
2,2-bis(3-amino-4-hydroxyphenyl) hexafluoropropane(BisAPAF) yog ib qho polyimide monomer.Nws yog siv rau hauv kev ua kom sov ntawm cov hluav taws xob tiv thaiv polymers, tshwj xeeb hauv kev tsim khoom tshwj xeeb Cov khoom siv hluav taws xob polymeoric-fluorinated polyimides. |
| Daim ntawv thov |
2,2-Bis(3-amino-4-hydroxyphenyl) hexafluoropropane (Bis-AP-AF/6FAP) muaj ob aminophenols txuas nrog hexafluoropropane. Cov tshuaj tiv thaiv ntawm Bis-AP-AF thiab BTDA tuaj yeem siv los tsim cov yeeb yaj kiab polyimide (PI). Lub zog tensile, tensile modulus thiab elongation ntawm kev tawg ntawm PI zaj duab xis tau txhim kho zoo los ntawm 60Co irradiation nrog qhov zoo tshaj plaws irradiation koob tshuaj ntawm 50 kGy. Qhov siab tshaj plaws increments ntawm tensile zog, tensile modulus thiab elongation ntawm tawg ntawm irradiated PI films yog 37.8%, 45.0% thiab 95.2%, feem. Lub siab proton conductivity thiab zoo tshuaj thiab thermal stability ntawm cov fluorinated films ua rau lawv zoo tshaj plaws rau siv nyob rau hauv roj cell systems. Tsis tas li ntawd, Bis-AP-AF tuaj yeem siv los tsim cov polybenzoxazole (TR-PBO) daim nyias nyias siv los ua cov khoom siv hluav taws xob semiconductor. |
| Kev piav qhia dav dav |
2,2-Bis(3-amino-4-hydroxyphenyl) hexafluoropropane, kuj hu ua 4,4′-(1,1,1,3,3,3-hexafluoro -2,2-propanediyl)bis({15}}aminophenol), yog ib qho tshuaj tsw qab diamine. |
