Shaanxi BLOOM Tech Co., Ltd. yog ib tug ntawm cov uas paub txog manufacturers thiab lwm tus neeg ntawm 2,2,2-trifluoroethyl methacrylate cas 352-87-4 nyob Suav teb. Txais tos rau cov lag luam wholesale zoo siab 2,2,2-trifluoroethyl methacrylate cas 352-87-4 muag ntawm no los ntawm peb lub hoobkas. Kev pabcuam zoo thiab tus nqi tsim nyog muaj.
2,2,2-Trifluoroethyl Methacrylate(TFEMA), nrog rau cov tshuaj formula C6H7F3O2 thiab CAS 352-87-4, yog ib qho tseem ceeb organic synthesis intermediate thiab tsis muaj xim rau lub teeb daj pob tshab kua. Nyob rau hauv cov xwm txheej sib txawv, nws cov xim yuav txawv me ntsis, tab sis tag nrho nws nthuav tawm cov yam ntxwv meej thiab pob tshab. Lub solubility hauv dej yog qhov tsawg, nrog rau solubility ntawm 0.05% (los yog 906mg / L ntawm 20 degree) ntawm 20 degree. Qhov no txhais tau tias nws tsis yooj yim soluble hauv dej, tab sis tej zaum yuav muaj solubility zoo nyob rau hauv tej yam organic solvents. Qhov ceev 1.181g / ml, refractive index (η D25) 1.359 ntawm 25 degree, boiling point 107 degree, solubility wt%, 0.05 nyob rau hauv dej ntawm 20℃. 20℃vapor siab 2.2KPa, melting point -22℃, homopolymer tshaj li Tg 98.0%, tus qauv zoo (Q/HXJ097-2002) qhov project Performance index tus nqi purity Ntau dua los yog sib npaug rau 96%, noo noo tsawg dua los yog sib npaug rau 0.5%, xim (APHA) Tsawg dua los yog sib npaug rau 50, acidity (xws li MAA) Tsawg dua los yog sib npaug li 0.5%. Feem ntau yog siv rau hauv coatings los txhim kho lawv cov huab cua tsis kam, dej tsis kam, thiab muaj kuab paug tsis kam. Nws tseem tuaj yeem siv los ua cov txheej txheem thiab cov khoom siv tseem ceeb rau cov khoom siv kho qhov muag, nrog rau kev kho tus nqi rau cov lo ntsiab muag thiab lub computer toners thiab cov khoom nqa khoom.
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Tshuaj Formula |
C6H7F3O2 |
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Exact Mass |
168 |
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Molecular Luj |
168 |
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m/z |
168 (100.0%), 169 (6.5%) |
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Elemental Analysis |
C, 42.87; H, 4.20; F, 33.90; O, 19.03 |
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Ib txoj kev npaj ntawm2,2,2-Trifluoroethyl Methacrylate:
Trifluoroethanol thiab methacryloyl chloride tau siv los ua raw cov ntaub ntawv rau esterification nyob rau hauv kev tiv thaiv ntawm polymerization inhibitor, thiab tom qab ntawd lub hom phiaj cov khoom trifluoroethylmethacrylate tau sau los ntawm cov tshuaj tiv thaiv cov khoom Cov purity ntawm trifluoroethylmethacrylate tau los ntawm cov txheej txheem kev npaj ntawm tam sim no invention yog ntau tshaj 99%, lub yield yog ntau tshaj li 10.10% - 80%. . Piv nrog rau cov kos duab ua ntej, cov txheej txheem tshuaj tiv thaiv ntawm qhov kev tsim kho tam sim no yog me me.
Tam sim no invention qhia txog kev ua tau zoo thiab siab - purity txoj kev npaj trifluoroethyl methacrylate (TFEMA), uas siv trifluoroethanol thiab methacryloyl chloride ua raw cov ntaub ntawv tseem ceeb, synthesizes lub hom phiaj cov khoom los ntawm esterification cov tshuaj tiv thaiv, thiab qhia ib tug polymerization inhibitor thoob plaws hauv lub txheej txheem los tiv thaiv pliaj polymerization cov tshuaj tiv thaiv, yog li ntawd. Hauv qab no yog ib qho kev piav qhia ntawm txoj kev:
Paub meej cov kauj ruam ntawm cov txheej txheem synthesis
Trifluoroethanol:
Xyuas kom meej lub purity thiab dryness ntawm raw cov ntaub ntawv, raws li ya raws tuaj yeem cuam tshuam rau cov tshuaj tiv thaiv esterification.
Methacryloyl chloride:
High purity raw cov ntaub ntawv kuj yuav tsum tau, thiab vim nws volatility thiab irritability, cov khoom siv tiv thaiv tsim nyog yuav tsum tau hnav thaum ua haujlwm.
Polymerization inhibitor:
Xaiv cov inhibitors tsim nyog xws li hydroquinone (HQ), para hydroxybenzene methyl ether (MEHQ), thiab lwm yam, los tiv thaiv dawb radical polymerization thaum lub sij hawm cov txheej txheem tshuaj tiv thaiv.
Solvent (yeem):
Raws li qhov yuav tsum tau ua ntawm cov tshuaj tiv thaiv kab mob, cov kuab tshuaj tsim nyog xws li dichloromethane, tetrahydrofuran (THF), los yog toluene tuaj yeem raug xaiv los txhim kho cov dej solubility thiab cov tshuaj tiv thaiv ntawm cov reactants.
Txawm li cas los xij, xav txog kev ua haujlwm ntawm methacryloyl chloride, qee zaum cov tshuaj tiv thaiv ncaj qha thiab ua haujlwm tau zoo nyob rau hauv cov kuab tshuaj -dawb tej yam kev mob.
Siv lub khob peb lub caj dab qhuav ua cov tshuaj tiv thaiv kab mob, nruab nrog lub tshuab magnetic stirrer, tus pas ntsuas kub, thiab condensation reflux ntaus ntawv.
Xyuas kom meej tias tag nrho cov iav iav yog qhuav thiab tsis muaj dej, thiab ua ntej tshuab nrog inert gas (xws li nitrogen) kom tshem tawm oxygen thiab noo noo los ntawm huab cua.
Nyob rau hauv kev tiv thaiv nitrogen, ntxiv trifluoroethanol thiab ib tug polymerization inhibitor (nyob rau hauv ib tug tej yam kev faib ua feem) rau hauv ib tug peb necked hwj, thiab pib stirring kom tusyees disperse lub polymerization inhibitor.
Maj mam ntxiv methacryloyl chloride dropwise rau cov tshuaj tiv thaiv kab mob, tswj tus nqi dripping kom tswj qhov kub thiab txias. Cov kauj ruam no yuav tsum tau saib xyuas tshwj xeeb rau kev nyab xeeb, vim methacryloyl chloride yuav decompose hnyav thaum raug dej los yog alkali.
Kho cov cuab yeej cua sov raws li cov kev mob tshwm sim (xws li qhov kub thiab txias, siab, lub sijhawm tshuaj tiv thaiv, thiab lwm yam) kom tso cai rau cov tshuaj tiv thaiv mus rau qhov kub thiab txias. Feem ntau, esterification cov tshuaj tiv thaiv yog ua los ntawm chav tsev kub thiab reflux kub, tab sis qhov tshwj xeeb kub yuav tsum tau txiav txim siab raws li kev sim.
Thaum lub sij hawm cov txheej txheem tshuaj tiv thaiv, cov tshuaj tiv thaiv kev nce qib tuaj yeem soj ntsuam los ntawm kev tshuaj ntsuam xyuas xws li TLC (thin txheej chromatography) lossis GC-MS (gas chromatography-mass spectrometry).
Tom qab cov tshuaj tiv thaiv tiav lawm, txias cov tshuaj tiv thaiv rau hauv chav tsev kub thiab ntxiv ib qho dej kom tsim nyog los tua cov methacryloyl chloride uas tsis muaj kev cuam tshuam. Thov nco ntsoov tias cov kauj ruam no tuaj yeem tsim cov roj acidic (xws li HCl) thiab yuav tsum tau nqa tawm hauv lub fume hood.
Tshem tawm cov txheej txheem organic uas tsim nyog cov kuab tshuaj organic (xws li dichloromethane, ethyl acetate, thiab lwm yam) thiab ntxuav nrog cov kua qaub kua qaub kom tshem tawm cov dej -soluble impurities.
Qhuav cov organic txheej (siv cov desiccants xws li anhydrous sodium sulfate los yog potassium carbonate), lim thiab mloog zoo kom qhuav kom tau cov khoom nyoos.
Ntxiv purify cov khoom nyoos los ntawm txoj kev xws li recrystallization, distillation, los yog kab chromatography kom tau siab -purity Trifluoroethyl Methacrylate.
Nws yuav tsum raug sau tseg tias qhov sib npaug no yog ib qho kev sawv cev zoo tshaj plaws, thiab hauv cov kev tshwm sim tiag tiag, lwm yam kev cuam tshuam sab nraud kuj tuaj yeem tshwm sim, xws li hydrolysis ntawm raw cov ntaub ntawv thiab oxidation ntawm cawv. Tsis tas li ntawd, cov txheej txheem tshwj xeeb ntawm kev txiav txim ntawm tus inhibitor yuav koom nrog cov txheej txheem nyuaj xws li kev ntes cov dawb radicals lossis kev txiav tawm ntawm cov tshuaj tiv thaiv kab mob, uas tsis qhia meej meej hauv qhov sib npaug. Nws tuaj yeem siv rau hauv cov tshuab copolymerization tshiab los kho cov ntsiab lus fluorine.
Kev sib npaug tshuaj
Thaum piav qhia txog cov tshuaj sib npaug, peb yuav tsum nco ntsoov tias esterification yog ib qho kev hloov pauv cov tshuaj tiv thaiv, nyob rau hauv uas pawg hydroxyl ntawm cawv yog hloov los ntawm pawg acyl ntawm acyl chloride, thaum tsim hydrogen chloride (HCl) raws li cov khoom lag luam. Txawm li cas los xij, hauv kev ua haujlwm zoo, vim muaj cov tshuaj polymerization inhibitors thiab muaj peev xwm ua kom hnyav, cov tshuaj sib npaug yuav nyuaj me ntsis.
Hauv qhov sib npaug no:
Tab sis txhawm rau ua kom yooj yim piav qhia, peb tuaj yeem sau qhov kev sib npaug ntawm cov tshuaj tiv thaiv hauv qab no:
CF3CH2OH + CH2=C(CH3)COCl → CF3CH2OOCCH=C(CH3)2 + HCl
-Sab laug yog cov reactants:
trifluoroethanol (CF3CH2OH) thiab methacryloyl chloride (CH2=C (CH3) COCl).
-Saum tus xub sau tias "inhibitor"
Qhia tias cov tshuaj tiv thaiv tshwm sim nyob rau hauv lub xub ntiag ntawm ib tug inhibitor los tiv thaiv dawb radical polymerization.
- Ntawm sab xis yog cov khoom:
trifluoroethyl methacrylate (CF3CH2OOCCH=C (CH3) 2) thiab hydrogen chloride (HCl).
Nws yuav ua lub luag haujlwm tseem ceeb hauv kev hloov kho thiab cov tsos ntawm resin functionality. 2,2,2-trifluoroethylmethacrylate yog nquag mus rau radical polymerization, bulk polymerization, kua polymerization thiab tshuaj pleev ib ce polymerization nyob rau hauv bulk polymerization los yog kua polymerization, organic peroxide / dibenzoyl peroxide thiab azo dawb radical polymerization pib / azodiionisoble, thaum siv dej-azodiones Cov pib xws li potassium persulfate lossis ammonium persulfate yog siv 2,2,2-trifluoroethylmethacrylate tuaj yeem ua copolymerized nrog cov vinyl monomers xws li acrylate, styrene, acrylonitrile, vinyl acetate, vinyl acetate thiab lwm yam fluoroacrylate; Nws tuaj yeem siv rau hom hnyav, hom thermoplastic, thermosetting thiab pleev xim hom txheej lossis lwm yam ntaub ntawv.
Kev siv ntawm trifluoroethylmethacrylate:
(1) Cov kuab tshuaj raws li cov txheej txheem thermoplastic tshwj xeeb yog tsim nyog rau kev npaj cov txheej txheem vim 2,2,2-trifluoroethylmethacrylate tuaj yeem yooj yim copolymerized nrog lwm cov acrylic monomers. Cov tshuaj ruaj khov thiab huab cua tsis kam ntawm cov txheej txheej tuaj yeem txhim kho los ntawm copolymerizing fluorine-muaj esters nrog acrylic monomers
(2) Cov khoom lag luam nrog cov dej tsis zoo ntawm cov thermosetting txheej tuaj yeem ua rau polymerize nrog cov polymers nrog cov pab pawg ua haujlwm ntawm cov saw hlau, xws li (meth) acrylic acid, hydroxy acrylic acid thiab hydroxy acrylamide, thiaj li daws tau qhov teeb meem uas lub gloss ntawm txheej zaj duab xis txo qis vim hydrolysis, thiab txawm tias qhov tshwm sim ntawm pulverization los yog tawg tshwm sim. Thiab nrog kev sib ntxiv ntawm copolyfluoroester, cov pa phem kuj tseem txhim kho.
(3) Lotion hom txheej2,2,2-trifluoroethyl methacrylatemuaj cov cuab yeej ze ntawm cov khoom siv acrylic monomer. Raws li fluorine- muaj cov monomer, nws yuav tsis cuam tshuam rau cov neeg kho tshuab thiab tshuaj lom neeg ruaj khov ntawm cov tshuaj pleev ib ce. Ntawm qhov tsis sib xws, raws li kev ua haujlwm saum npoo av ntawm fluorine, cov monomer no pab txhim kho kev ruaj ntseg ntawm cov tshuaj pleev ib ce hauv cov txheej txheem polymerization. Nws tuaj yeem ua polymerized yam tsis muaj emulsifier.
(4) Nws yog ib qho nyuaj rau polymerize 2,2,2-trifluoroethylmethacrylate los ntawm lub teeb irradiation. Nws yog tshwj xeeb tshaj yog haum rau copolymerization nrog ib co UV polymerized monomers. Cov txiaj ntsig copolymer yog siv los ua UV crosslinked cob.
(5) Lwm yam kev siv: 2,2,2-trifluoroethylmethacrylate tuaj yeem siv los ua ib feem ntawm ntau yam txheej tshwj xeeb. Vim nws cov tshuaj lom neeg ruaj khov zoo heev, qhov sib xyaw no yog siv los tiv thaiv txheej rau dav hlau; Nws tuaj yeem ua tau copolymerized nrog lwm cov vinyl tebchaw thiab propylene tebchaw los siv los ua cov txheej du rau ntawv.
Cov txheej no yog tsim nyog rau kev tiv thaiv saum npoo ntawm cov ntawv luam ntawv thiab txhim kho cov gloss, thiab tseem txhim kho cov kev tiv thaiv adhesion thiab kev ua haujlwm tsis zoo. Raws li cov ntaub ntawv, 2,2,2-trifluoroethylmethacrylate yog siv los yog siv tau rau hauv kev tsim cov tshuaj tiv thaiv lo ntsiab muag, luam theej duab toners, optical fibers, pigments thiab lwm yam coatings, photosensitive resin cov ntaub ntawv, adhesives thiab cov khoom siv kho mob. Kev sib raug zoo zoo ntawm 2,2,2-trifluoroethylmethacrylate nrog rau lwm cov monomers yuav tsum nthuav dav nws cov ntawv thov tshiab. Siv TFEMA yog cov kua tsis muaj xim pob tshab nrog polymerizability thiab ester tsw.2,2,2-Trifluoroethyl Methacrylatenrog - CF3 pab pawg muaj kev sib raug zoo nrog cov monomers thiab monomers nrog cov ntsiab lus fluorine siab.
Cov khoom ntawm polymer:
Thermal thiab mechanical yam ntxwv cov polymer ntawm 2,2,2-trifluoroethylmethacrylate yog pob tshab amorphous polymer nrog lub iav hloov pauv point (TG) ntawm 82, uas yog qis dua li ntawm MMA polymer tab sis siab dua li ntawm acrylic polymer. Yog li ntawd, 2,2,2-trifluoroethylmethacrylate polymer yog mos, thiab lub zog tawg thiab hardness yog li ntawm 1/2 ntawm tus nqi sib thooj ntawm MMA.
Cov yam ntxwv ntawm qhov chaw tseem ceeb ntawm qhov nro qhia qhov nyuaj ntawm kev ntub dej ntawm cov khoom nto. Feem ntau, qhov me me no tus nqi yog, qhov nyuaj nws yog rau cov khoom nto yuav tsum tau wetted Nyob rau hauv fluoropolymer, qhov tseem ceeb nto nro yog txiav txim los ntawm lub sab saw qauv. Tsis zoo li cov polymer uas muaj fluorine nyob rau hauv cov saw tseem ceeb, cov polymer tau los ntawm polymerizing 2,2,2-trifluoroethylmethacrylate muaj cov dej tsis zoo thiab kev ua qias tuaj vim muaj cov fluorine atom hauv cov saw hlau sab.
Kev sib piv ntawm peb homopolymers sib txawv: yog li ntawd, hydrophobicity ntawm 2,2,2-trifluoroethylmethacrylate polymer nrog CF3 pawg yog ntau dua li ntawm MMA polymer. Hauv kev kawm ntawm copolymerization lossis resin ua, CF3 pawg concentration ntawm cov khoom siv polymer tuaj yeem nce ntxiv kom nws nthuav tawm ntau dua hydrophobicity, muaj kuab paug tsis kam, gloss thiab pob tshab.
Nws paub tias polarizability ntawm fluorine atom thiab CF daim ntawv cog lus yog me me, thiab lub zog ntawm lub teeb me me. Yog li ntawd, lub refractive index ntawm 2,2,2-trifluoroethylmethacrylate polymer yog tsawg. Qhov qis refractive index nce tus nqi ntawm cov ntaub ntawv xa los ntawm cov ntaub ntawv kho qhov muag kis tau tus mob. Lub refractive index ntawm 2,2,2-trifluoroethylmethacrylate yog qis dua li ntawm MMA polymer, thiab nws muaj adhesion zoo thiab yuav siv tau raws li cladding thiab core khoom ntawm optical fiber.
Gas permeability feem ntau fluoropolymer muaj cov pa oxygen permeability zoo heev. Nws ntseeg tau tias fluorogen muaj affinity siab rau oxygen. Siv cov cuab yeej no, cov copolymers ntawm 2,2,2-trifluoroethylmethacrylate thiab ntau yam fluorine-muaj monomers yog siv los ua cov lo ntsiab muag (contact lenses).
Cov yam ntxwv hluav taws xob fluoropolymers muaj fluorine atoms nrog lub siab tshaj plaws electronegativity, yog li lawv tau yooj yim tsis zoo. Siv cov khoom siv tsis zoo no, 2,2,2-trifluoroethylmethacrylate tuaj yeem siv los ua tus nqi kho mob rau cov toner thiab cov khoom siv hauv computer.
Kev nqus dej tsawg 2,2,2-trifluoroethylmethacrylate polymer muaj qhov nqus dej tsawg thiab tuaj yeem siv los ua cov tshuaj tiv thaiv ya raws los tiv thaiv cov dej noo los ntawm adsorbing ntawm cov ntawv luam tawm thiab tiv thaiv luv luv ntawm cov khoom siv hluav taws xob vim cov dej condensed.
Daim ntawv thov ntawm 2,2,2-trifluoroethylmethacrylate nyob rau hauv coatings cov khoom tseem ceeb ntawm 2,2,2-trifluoroethylmethacrylate polymer nyob rau hauv coatings yog huab cua tsis kam, dej tsis kam thiab muaj kuab paug kuj.
2,2,2-Trifluoroethyl methacrylate (TFEMA) yog ntau yam organic compound nrog lub cev thiab tshuaj lom neeg tshwj xeeb uas ua rau nws haum rau ntau yam kev siv thoob plaws ntau yam kev lag luam. Nws cov txheej txheem synthesis txuas ntxiv mus, txhawm rau ua kom muaj txiaj ntsig zoo dua thiab muaj kev vam meej. Thaum TFEMA muaj ntau yam txiaj ntsig, nws yog ib qho tseem ceeb uas yuav tau xav txog nws txoj kev nyab xeeb kom ntseeg tau tias qhov zoo ntawm cov neeg ua haujlwm thiab ib puag ncig. Nrog kev thov nce ntxiv los ntawm kev lag luam siv kawg thiab kev tshawb fawb thiab kev txhim kho txuas ntxiv, cov kev cia siab yav tom ntej rau TFEMA zoo siab, nrog rau kev loj hlob thiab kev tsim kho tshiab hauv xyoo tom ntej.
Cov lus nug nquag
TFEMA ruaj khov npaum li cas? Yuav tsum khaws cia li cas?
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Kev ruaj ntseg: TFEMA yog qhov ua rau tus kheej -polymerisation thiab yuav tsum tau ntxiv cov stabilizers (xws li MEHQ, methoxyhydroquinone) kom ntev nws lub txee lub neej.
Cia tej yam kev mob: Khaws rau hauv lub thawv ntim rau hauv qhov chaw qhuav, txias, kom deb ntawm qhov chaw sov, nplaim taws thiab cov oxidizing cov neeg ua haujlwm. Cia kub yuav tsum qis dua 30 degree, thiab ncaj qha tshav ntuj yuav tsum zam.
Dab tsi yog qhov kev tiv thaiv kev nyab xeeb rau TFEMA?
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Cov kev ceev faj: Hnav cov hnab looj tes tiv thaiv, tsom iav kev nyab xeeb thiab lub tsho (lab) thaum tuav kom tsis txhob sib chwv tawv nqaij lossis nqus pa.
Qhov cua yuav tsum: Siv nyob rau hauv lub qhov dej - qhov cua qhov chaw kuaj los yog chaw tsim khoom los tiv thaiv vapor tsub zuj zuj.
Teb xwm ceev: Nyob rau hauv rooj plaub ntawm kev sib cuag ntawm daim tawv nqaij, tam sim ntawd yaug nrog dej ntau ntau. Yog tias nqus tau, txav mus rau huab cua ntshiab thiab nrhiav kev kho mob sai.
Kev pov tseg pov tseg: Muab pov tseg raws li cov cai hauv zos kom tiv thaiv ib puag ncig.
Dab tsi yog cov qauv purity rau TFEMA? Nws kuaj li cas?
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Purity xav tau: Muaj-qib cov khoom lag luam feem ntau pom qhov purity ntau dua lossis sib npaug li 96%, thaum lub chaw soj nstuam- cov khoom qib yuav ua tiav ntau dua lossis sib npaug li 98% purity (raws li kev txiav txim siab los ntawm GC tsom xam).
Kev xeem txheej txheem: Cov qib impurity raug txheeb xyuas los ntawm cov pa roj chromatography (GC) kom ua tau raws li cov lus qhia tshwj xeeb.
Cim npe nrov: 2,2,2-trifluoroethyl methacrylate cas 352-87-4, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, kev muag khoom