• Thumbnail for Isobutylene
    Isobutylene (or 2-methylpropene) is a hydrocarbon with the chemical formula (CH3)2C=CH2. It is a four-carbon branched alkene (olefin), one of the four...
    5 KB (431 words) - 14:39, 21 March 2024
  • Thumbnail for Methyl methacrylate
    CH2=C(CH3)CO2CH3 + H2O A process using isobutylene as a raw material has been commercialized by Escambia Co. Isobutylene is oxidized to provide α-hydroxy isobutyric...
    19 KB (1,690 words) - 17:24, 5 June 2024
  • Thumbnail for Polyisobutene
    ~1,000,000 Names Other names Polyisobutylene; Poly(isobutene); Poly(isobutylene); PIB Identifiers CAS Number 9003-27-4 Y ChEBI CHEBI:53725 ECHA InfoCard...
    2 KB (118 words) - 09:56, 25 October 2023
  • Thumbnail for Butyl rubber
    is a synthetic rubber, a copolymer of isobutylene with isoprene. The abbreviation IIR stands for isobutylene isoprene rubber. Polyisobutylene, also known...
    13 KB (1,522 words) - 00:42, 26 June 2024
  • Thumbnail for Tert-Butyl acetate
    from acetic acid and isobutylene. An attempt at Fischer esterification would lead to elimination of tert-butyl alcohol to isobutylene. Butyl acetate has...
    3 KB (155 words) - 06:31, 22 January 2024
  • 1,3-butadiene from C4 raffinate stream and which, mainly consists of isobutylene 40~50 wt% and cis- or trans-2-butene 30~35 wt%. Normally C4R1 is a side...
    3 KB (377 words) - 14:18, 29 April 2022
  • is an organic polymer made from a mixture of 1-butene, 2-butene, and isobutylene. Ethylene steam cracker C4s are also used as supplemental feed for polybutene...
    3 KB (396 words) - 20:28, 29 March 2024
  • Butyl rubber is made by cationic polymerisation of isobutylene with about 2 - 7% isoprene. Isobutylene is also used for the production of methyl tert-butyl...
    9 KB (1,001 words) - 09:37, 17 July 2024
  • Thumbnail for Methyl tert-butyl ether
    methanol. Isobutylene can be produced through a variety of methods. n-butane can be isomerized into isobutane which can be dehydrogenated to isobutylene. In...
    21 KB (2,086 words) - 03:11, 4 July 2024
  • Thumbnail for Petrochemical
    amine butene isomers of butylene – useful as monomers or co-monomers isobutylene – feed for making methyl tert-butyl ether (MTBE) or monomer for copolymerization...
    20 KB (2,009 words) - 02:38, 11 February 2024
  • Thumbnail for Pentene
    vacuum gas oil (VGO) as a feedstock to produce primarily propylene, isobutylene, and isoamylene. The rise in demand for polypropylene has encouraged...
    6 KB (346 words) - 13:21, 28 September 2023
  • Thumbnail for 2,2,4-Trimethylpentane
    units in the presence of acid catalysts. It can also be produced from isobutylene by dimerization using an Amberlyst catalyst to produce a mixture of iso-octenes...
    7 KB (484 words) - 09:14, 24 January 2024
  • Thumbnail for Methacrylic acid
    route to methacrylic acid starts with isobutylene, which obtainable by dehydration of tert-butanol. Isobutylene is oxidized sequentially to methacrolein...
    8 KB (678 words) - 00:55, 30 June 2024
  • Thumbnail for Butane
    gases). The others include propane, propylene, butadiene, butylene, isobutylene, and mixtures thereof. Butane burns more cleanly than both gasoline and...
    23 KB (2,106 words) - 15:43, 23 June 2024
  • Thumbnail for Phenols
    tert-butyl phenols are produced annually (year: 2000) in this way, using isobutylene (CH2=CMe2) as the alkylating agent. Especially important is 2,6-ditert-butylphenol...
    11 KB (1,014 words) - 17:37, 4 April 2024
  • 1-Butanediol, hydrate of butanal 2,2-Butanediol, hydrate of butanone Isobutylene glycol may be considered a kind of butylene glycol, similarly to butane...
    2 KB (198 words) - 19:33, 26 May 2024
  • Thumbnail for Sulfuric acid
    refining, for example as a catalyst for the reaction of isobutane with isobutylene to give isooctane, a compound that raises the octane rating of gasoline...
    64 KB (7,165 words) - 09:24, 11 July 2024
  • combined styrene with isobutylene, he created a unique material that was solid yet flexible due to the tiny bubbles formed by isobutylene within the styrene...
    2 KB (219 words) - 12:27, 15 June 2024
  • g/mol) may refer to: Butenes (butylenes) 1-Butene, or 1-butylene 2-Butene Isobutylene Cyclobutane Methylcyclopropane This set index page lists chemical structure...
    342 bytes (60 words) - 18:51, 25 December 2021
  • anti-Markovnikov rule can be illustrated using the addition of hydrogen bromide to isobutylene in the presence of benzoyl peroxide or hydrogen peroxide. The reaction...
    9 KB (1,129 words) - 04:58, 22 February 2024
  • Thumbnail for Tert-Butyl alcohol
    oxide production. It can also be produced by the catalytic hydration of isobutylene, or by a Grignard reaction between acetone and methylmagnesium chloride...
    10 KB (723 words) - 16:40, 16 July 2024
  • Thumbnail for Ethyl tert-butyl ether
    tert-butyl ether is manufactured industrially by the acidic etherification of isobutylene with ethanol at a temperature of 30–110 °C and a pressure of 0,8–1,3...
    5 KB (303 words) - 20:33, 9 April 2022
  • trichloride polymerization (then called quasi-living) in 1982 and that of isobutylene (system with cumyl acetate, 2,4,4-trimethylpentane-2-acetate and BCl3)...
    9 KB (1,072 words) - 16:49, 15 June 2023
  • Thumbnail for Tert-Butylamine
    isobutylamine. tert-Butylamine is produced commercially by direct amination of isobutylene using zeolite catalysts: NH3 + CH2=C(CH3)2 → H2NC(CH3)3 The Ritter reaction...
    5 KB (251 words) - 11:18, 1 July 2024
  • Thumbnail for Chewing gum
    chocolate Nispero Rosidinha Venezuelan chicle Butadiene-styrene rubber Isobutylene-isoprene copolymer (butyl rubber) Paraffin (via the Fischer–Tropsch process)...
    57 KB (6,494 words) - 06:56, 30 May 2024
  • Thumbnail for Fawley Refinery
    Fawley. It is used to line tyres. The isobutylene feedstock for the polymers plant comes from the isobutylene plant. The solid halobutyl rubber is formed...
    17 KB (1,958 words) - 18:11, 4 May 2024
  • Thumbnail for Ester
    the t-butyl esters undergo elimination to give the carboxylic acid and isobutylene, simplifying work-up. Esters react with strong oxidizing acids, which...
    42 KB (4,410 words) - 22:49, 4 July 2024
  • Thumbnail for Steric effects
    Monomer Ceiling temperature (°C) Structure ethylene 610 CH2=CH2 isobutylene 175 CH2=CMe2 1,3-butadiene 585 CH2=CHCH=CH2 isoprene 466 CH2=C(Me)CH=CH2 styrene...
    11 KB (989 words) - 21:46, 20 May 2024
  • Thumbnail for Carboxylic acid
    for alkenes that generate secondary and tertiary carbocations, e.g. isobutylene to pivalic acid. In the Koch reaction, the addition of water and carbon...
    23 KB (2,176 words) - 10:55, 11 July 2024
  • Thumbnail for Butylated hydroxyanisole
    3-tert-butyl-4-hydroxyanisole. It is prepared from 4-methoxyphenol and isobutylene. The conjugated aromatic ring of BHA is able to stabilize free radicals...
    8 KB (619 words) - 03:36, 16 January 2024