Qhov sib txawv tseem ceeb ntawm isobutylene thiab polyisobutylene yog isobutylene yog monomer, hos polyisobutylene yog ib qho polymer.
Isobutylene lossis 1-butene yog cov organic compound uas muaj cov tshuaj formula CH3CH2CH=CH2. Polyisobutylene los yog polyisobutene yog ib hom organic polymer uas yog tsim los ntawm polymerization ntawm isobutene. Ntxiv mus, isobutylene zoo nkaus li cais, ib tus neeg molecules thaum polyisobutylene molecules muaj ntau ntawm isobutylene molecules txuas rau ib leeg.
Isobutylene yog dab tsi?
Isobutylene lossis 1-butene yog cov organic compound uas muaj cov tshuaj formula CH3CH2CH=CH2. Nws tseem hu ua 1-butylene. Nws zoo nkaus li cov roj tsis muaj xim uas tuaj yeem ua rau cov kua tsis muaj xim. Peb tuaj yeem faib cov tshuaj no ua cov kab alpha-olefin. Qhov tseem ceeb tshaj, isobutylene yog cov roj hluav taws kub.
Peb tuaj yeem tsim 1-butene los ntawm kev sib cais los ntawm crude C4 refinery kwj thiab los ntawm ethylene dimerization. Kev sib cais los ntawm C4 refinery tsim kev sib xyaw ntawm 1- thiab 2- butane compounds. Cov txheej txheem ethylene dimerization tsim tsuas yog lub davhlau ya nyob twg alkene. Peb tuaj yeem distil cov khoom muab los ntawm cov txheej txheem no kom tau txais cov khoom lag luam purity siab heev. Kwv yees li ntawm 12 billion kilograms ntawm 1-butene tau tsim nyob rau hauv 2011.
Daim duab 01: Cov Qauv Tshuaj ntawm Isobutylene
Cov khoom no muaj txiaj ntsig zoo rau kev tsim khoom ntau yam. Piv txwv li, peb tuaj yeem alkylate isobutylene nrog butane uas muab isooctane. Los yog lwm yam, peb tuaj yeem dimerize nws kom tau diisobutylene uas tom qab ntawd tuaj yeem ua hydrogenated kom tau isooctane. Isooctane yog ib qho tseem ceeb raws li cov roj additive. Ntxiv mus, isobutylene muaj txiaj ntsig zoo hauv kev tsim cov tshuaj methacrolein. Tsis tas li ntawd, peb tuaj yeem tau txais cov roj hmab butyl los ntawm polymerization ntawm isobutylene. Tsis tas li ntawd, alkylation ntawm phenols nrog isobutylene ntawm Friedel-Crafts alkylation muab antioxidants xws li butylated hydrxytoluene thiab butylated hydroxyanisole.
YPolyisobutylene yog dab tsi?
Polyisobutylene lossis polyisobutene yog ib hom organic polymer uas yog tsim los ntawm polymerization ntawm isobutene. Feem ntau, cov tshuaj no muaj nyob hauv cov khoom tsis muaj xim tsis muaj xim.
Daim duab 02: Cov Qauv Tshuaj ntawm Polyisobutylene
Cov txheej txheem polymerization ntawm isobutylene yog pib nrog lub zog Bronsted lossis Lewis acid. Cov txiaj ntsig polymer muaj qhov hnyav molecular uas txiav txim siab txog kev siv cov khoom siv polymer. Tsis tas li ntawd, cov khoom siv polymer uas tsis tshua muaj molecular yog sib xyaw ntawm oligomers. Nws muaj txiaj ntsig zoo li plasticizer. Ntxiv mus, muaj qhov nruab nrab thiab siab molecular hnyav polyisobutylene uas yog ib qho tseem ceeb raws li cov khoom ntawm cov nplaum ua lag luam.
Dab tsi zoo sib xws ntawm Isobutylene thiab Polyisobutylene?
- Isobutylene thiab polyisobutylene yog cov organic tebchaw.
- Ob lub tebchaw muaj plaub-carbon units.
- Ntxiv mus, lawv tseem ceeb heev hauv kev lag luam.
- Ntxiv rau, ob qho tib si isobutylene thiab polyisobutylene tshwm sim ua kua tsis muaj xim.
Qhov txawv ntawm Isobutylene thiab Polyisobutylene yog dab tsi?
Isobutylene lossis 1-butene yog cov organic compound uas muaj cov tshuaj formula CH3CH2CH=CH2. Polyisobutylene los yog polyisobutene yog ib hom organic polymer uas yog tsim los ntawm polymerization ntawm isobutene. Qhov sib txawv tseem ceeb ntawm isobutylene thiab polyisobutylene yog isobutylene yog monomer, hos polyisobutylene yog polymer. Tsis tas li ntawd, cov tshuaj isobutylene zoo nkaus li cais, ib tus neeg molecules, thaum polyisobutylene molecules muaj ntau ntawm isobutylene molecules txuas rau ib leeg.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm isobutylene thiab polyisobutylene hauv daim ntawv tabular rau kev sib piv ntawm ib sab.
Summary – Isobutylene vs Polyisobutylene
Isobutylene lossis 1-butene yog cov organic compound uas muaj cov tshuaj formula CH3CH2CH=CH2. Polyisobutylene los yog polyisobutene yog ib hom organic polymer uas yog tsim los ntawm polymerization ntawm isobutene. Qhov sib txawv tseem ceeb ntawm isobutylene thiab polyisobutylene yog isobutylene yog monomer, hos polyisobutylene yog polymer.
