Vinyl Pivalate (CAS 3377-92-2), tseem hu ua Vinyl trimethylacetate, yog ib qho tshwj xeeb vinyl ester monomer. Nws cov qauv tshuaj yog C7H12O2nrog qhov hnyav molecular ntawm 128.17 g / mol. Nws yog cov kua ntshiab, tsis muaj xim uas muaj cov yam ntxwv los ntawm nws cov pawg pivalate heev, uas muab cov khoom tshwj xeeb rau nws cov polymers.
Khoom Parameter (Specification)
|
Specification |
Txheem tus nqi |
|
Purity |
>99.0% (GC) |
|
Qhov tshwm sim |
Colorless rau Yuav luag tsis muaj xim ntshiab kua |
|
Inhibitor |
Stabilized nrog Hydroquinone (HQ), feem ntau 5-30 ppm |
|
Molecular Formula |
C7H12O2 |
|
Molecular Luj |
128.17 g / mol |
|
Boiling Point |
110-112℃(lit.) |
|
Qhov ntom |
0.866 g / mL ntawm 25℃(lit.) |
|
Refractive Index |
n20/D 1.405 (lit.) |
|
Flash Point |
15℃(kaw khob) |
Khoom Feature thiab Daim Ntawv Thov
Nta
● Siab Reactivity:Cov vinyl pawg tso cai rau kom yooj yim polymerization thiab copolymerization.
● Steric Hindrance:Cov pab pawg loj pivalate muab kev tiv thaiv zoo rau hydrolysis, UV teeb, thiab cua sov hauv cov polymer kawg.
● Stabilized:Muab nrog ib qho inhibitor (HQ) los tiv thaiv pliaj polymerization thaum lub sij hawm cia.
Daim ntawv thov
● Tshwj xeeb Polymers:Siv los ua cov monomer hauv emulsion polymerization los tsim cov khoom ua haujlwm siab -cov nplaum nplaum, coatings, thiab sealants.
● Copolymerization:Copolymerized nrog vinyl acetate los yog ethylene los tsim cov polymers nrog txhim kho hydrophobicity thiab durability.
● Kev Tshawb Fawb Txog Kev Kho Mob:Ua hauj lwm nyob rau hauv lub synthesis ntawm polyvinyl cawv (PVA) nrog tshwj xeeb tacticity rau cov tshuaj xa systems thiab embolic agents.
● Chemical Intermediate:Siv rau hauv cov organic synthesis thiab tsim cov tshuaj zoo.
Paub meej ntau lawm
Vinyl Pivalate feem ntau yog tsim los ntawm cov tshuaj tiv thaiv transvinylation.
Cov txheej txheem no suav nrog cov tshuaj tiv thaiv pivalic acid nrog vinyl acetate nyob rau hauv lub xub ntiag ntawm ib tug catalyst (xws li, ruthenium complex) nyob rau hauv kev tswj kub thiab siab.
The crude product is then purified via vacuum distillation to achieve high purity levels (>99%) thaum ua tib zoo tswj cov xwm txheej kom tsis txhob rov- sib npaug rov qab rau cov khoom pib.
Cov khoom tsim nyog
Cov khoom yog tsim thiab kuaj kom tau raws li cov qauv purity siab. Standard qualification muaj xws li:
- Purity Analysis: Verified by Gas Chromatography (GC) to be >99.0%.
- Kev kuaj lub cev:Ua raws li cov lus qhia tshwj xeeb rau qhov zoo li, qhov ntsuas tsis pom tseeb, thiab qhov ntom ntom.
- Certificate of Analysis (COA):COA muaj nyob rau ntawm qhov kev thov, piav qhia txog qhov tshwj xeeb cov txiaj ntsig kev xeem.
Xa, Shipping thiab Pab
- Kev faib tawm:Muab faib ua cov khoom siv phom sij rau kev thauj mus los.
- UN Number:UN 3272
- Hazard Class:3 (Flammable Liquid)
- Packing Group:II
- Ntim:Muaj nyob rau hauv ntau qhov ntim ntim, suav nrog 25mL, 100mL, 250mL, thiab 500mL iav fwj, nrog rau 1L units.
- Cia:Pom zoo khaws cia rau hauv qhov chaw txias, tsaus nti (<15°C) away from heat, sparks, and open flames. Keep container tightly closed.
FAQ
Q: Vim li cas Vinyl Pivalate ruaj khov nrog Hydroquinone (HQ)?
A: HQ yog ntxiv los ua tus inhibitor los tiv thaiv ntxov ntxov dawb -radical polymerization thaum lub sij hawm cia thiab thauj, ua kom cov khoom ruaj khov thiab txee lub neej.
Q: Dab tsi yog qhov txiaj ntsig tseem ceeb ntawm kev siv Vinyl Pivalate hauv polymers?
A: Nws qhov txiaj ntsig tseem ceeb yog qhov tshwj xeeb tsis kam tiv thaiv hydrolysis, huab cua, thiab cua sov nws muab rau cov copolymer, ua tsaug rau steric hindrance ntawm tertiary carbon pawg (pivalate).
Q: Cov khoom no puas haum rau cov tshuaj formulations?
A: Vinyl Pivalate yog npaj rau siv los ua ib qho kev lag luam monomer thiab rau kev tshawb fawb thiab kev loj hlob. Nws tsis haum rau tib neeg lossis kws kho tsiaj siv yam tsis tau ua ntxiv thiab kev pom zoo tsim nyog.
Cim npe nrov: Tuam Tshoj vinyl pivalate manufacturers, hoobkas
