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Polyisobutylene

Product Name
Polyisobutylene
CAS No.
9003-27-4
Chemical Name
Polyisobutylene
Synonyms
usb;POLYISOBUTENE;p20;p118;p200;POLY(ISOBUTYLENE) 24'000;kp5;oktol;pb150;pib100
CBNumber
CB8147859
Molecular Formula
C4H8
Formula Weight
56.10632
MOL File
9003-27-4.mol
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Polyisobutylene Property

Melting point:
54-56 °C
Boiling point:
300 °C
Density 
0.92 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.51
form 
slab/chunk
Stability:
Stability Combustible. Incompatible with strong oxidizing agents.
InChI
InChI=1S/C4H8/c1-4(2)3/h1H2,2-3H3
InChIKey
VQTUBCCKSQIDNK-UHFFFAOYSA-N
SMILES
C=C(C)C
EPA Substance Registry System
Polyisobutylene (9003-27-4)
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Safety

Safety Statements 
24/25
WGK Germany 
3
RTECS 
UD1010000
HS Code 
39022000
Hazardous Substances Data
9003-27-4(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
181455
Product name
Polyisobutylene
Purity
average Mw ~500,000, average Mn ~200,000 by GPC/MALLS, average Mv ~420,000
Packaging
100g
Price
$194
Updated
2024/03/01
Sigma-Aldrich
Product number
1546966
Product name
Polyisobutylene
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
1g
Price
$312
Updated
2024/03/01
Sigma-Aldrich
Product number
181463
Product name
Polyisobutylene
Purity
average Mw ~1,000,000, average Mn ~600,000 by GPC/MALLS, average Mv ~1,200,000
Packaging
100g
Price
$189
Updated
2024/03/01
Sigma-Aldrich
Product number
181455
Product name
Polyisobutylene
Purity
average Mw ~500,000, average Mn ~200,000 by GPC/MALLS, average Mv ~420,000
Packaging
250g
Price
$351
Updated
2024/03/01
TRC
Product number
P699328
Product name
Polyisobutylene
Packaging
100mg
Price
$90
Updated
2021/12/16
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Polyisobutylene Chemical Properties,Usage,Production

Chemical Properties

Polyisobutylene is composed of long-chain hydrocarbon formed by polymerization of isobutene, and is extremely stable under normal conditions. It is transparent non-noxious high-consistency semi-solid polymer free of impurities.

Chemical Properties

The physical properties of polyisobutene are very dependent on molecular weight. Polymers with average molecular weight (Mw) of about 15 000 are sticky viscous liquids whilst those with molecular weight of 100000-200000 are rubber-like, resembling unmilled crepe rubber.
Polyisobutene is non-crystalline when unstretched and is therefore soluble at room temperature in hydrocarbons and halogenated hydrocarbons. The material is resistant to most acids, alkalis and aqueous solutions, as would be expected from its saturated hydrocarbon structure and absence of tertiary hydrogen atoms. The lack of tertiary hydrogen atoms renders polyisobutene more resistant to oxidation than polypropylene; also, the less numerous and partially shielded methylene groups in polyisobutene are less reactive than those in polyethylene. However, polyisobutene is rather susceptible to thermal degradation since chain scission is favoured by the greater stability of the resultant tertiary free radical:
Polyisobutene may be chlorinated but the reaction is accompanied by severe degradation.
A limitation of polyisobutene is its tendency to cold flow and, as a result, the polymer finds little use in self-supporting form. Applications are restricted mainly to adhesives, fabric and paper coatings, and blends with other polymers. Low molecular weight polyisobutene is also used in caulking compounds.

Uses

polyisobutene (hydrogenated) is an emollient.
Polyisobutylene, sometimes called butyl rubber, and other times PIB, is a vinyl polymer. It's very similar to polyethylene and polypropylene in structure, except that every other carbon is substituted with two methyl groups. It is made from the monomer isobutylene, by cationic vinyl polymerization.
Polyisobutylene is a synthetic rubber, or elastomer. It's special because it's the only rubber that's gas impermeable. That is, it's the only rubber that can hold air for long periods of time. You may have noticed that balloons will go flat after a few days. This is because they are made of polyisoprene, which is not gas impermeable. Because polyisobutylene will hold air, it is used to make things like the inner tubes, liner layers of tires, and the inner liners of basketballs.

Preparation

Silicone rubbers are prepared as follows:

Other groups may replace the methyl groups. Silicone rubbers have excellent ozone and weathering resistance, good electrical properties, and good adhesion to metal.

Definition

ChEBI: A polymer composed of repeating 1,1-dimethylethylene units.

Polyisobutylene Preparation Products And Raw materials

Raw materials

Isobutylene PETROLEUM ETHER Aluminum chloride

Preparation Products

4-tert-Butylphenol 4-tert-Octylphenol Oil slurry antiscale
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Polyisobutylene Suppliers

Belgium 1 China 189 Europe 2 Germany 4 India 6 Japan 1 Switzerland 1 The Netherlands 1 United Kingdom 3 United States 29 Global 237
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View Lastest Price from Polyisobutylene manufacturers

Wuhan Boyuan Import & Export Co., LTD
Product
Polyisobutylene 9003-27-4
Price
US $20.00/kg
Min. Order
10kg
Purity
99.9%
Supply Ability
800kg/month
Release date
2023-06-20
Hebei Guanlang Biotechnology Co., Ltd.
Product
POLYISOBUTYLENE PIB 9003-27-4
Price
US $100.00/Kg/Bag
Min. Order
1KG
Purity
99%min
Supply Ability
200TON
Release date
2020-11-24
Hebei Longbang Technology Co., Ltd
Product
Polyisobutylene 9003-27-4
Price
US $6.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20TONS
Release date
2024-05-20

9003-27-4, PolyisobutyleneRelated Search:

Polybutene butyl rubber Ferric acetylacetonate Tosylmethyl isocyanide 1,1,3,3-TETRAMETHYLBUTYL ISOCYANIDE TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)EUROPIUM(III) Aluminum acetylacetonate N-BUTYLISOCYANIDE Tris(2,4-pentanedionato)chroMiuM(III) Ethyl isocyanoacetate Benzyl isocyanide TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)DYSPROSIUM(III) Cupric acetylacetonate DICHLORO(ETHYLENEDIAMINE)PLATINUM(II) 2,4-PENTANEDIONE, SILVER DERIVATIVE COBALT(II) ACETYLACETONATE METHYL ISOCYANOACETATE PHENYLSELENOL Polyisobutene

  • POLY(ISOBUTYLENE) STANDARD 10'000 FOR &
  • POLYISOBUTYLENE, AVERAGE MV CA. 1,200,00 0
  • POLY(ISOBUTYLENE) STANDARD 134`000, FOR GPC
  • POLY(ISOBUTYLENE) STANDARD 680, FOR
  • POLY(ISOBUTYLENE) STANDARD 2'500 FOR &
  • POLY(ISOBUTYLENE) STANDARD 302'000 FOR&
  • POLY(ISOBUTYLENE) STANDARD 34'000 FOR &
  • POLYISOBUTYLENE, AVERAGE MV CA. 4,700,00 0
  • POLY(ISOBUTYLENE) STANDARD 583`000, FOR GPC
  • POLY(ISOBUTYLENE) STANDARD 24`000, FORGP C
  • POLY(ISOBUTYLENE) STANDARD 390 FOR GPC
  • POLY(ISOBUTYLENE) STANDARD 856`000, FOR GPC
  • POLYISOBUTYLENE, AVERAGE MV CA. 420,000
  • POLY(ISOBUTYLENE) STANDARD 86'000 FOR &
  • POLY(ISOBUTYLENE) STANDARD 73'000 FOR &
  • POLY(ISOBUTYLENE) STANDARD 4`400, FOR GP C
  • POLY(ISOBUTYLENE) STANDARD 43'000 FOR &
  • PIB=Oppanol(R)
  • VISTANEX MM L-100
  • VISTANEX MM L-120
  • VISTANEX MM L-140
  • VISTANEX MM L-80
  • Butyleneresinliquid
  • ButyleneresinsolidhighMWt
  • ButyleneresinsolidlowMWt
  • ButyleneresinsolidmedMWt
  • iso-Butylene resin (liquid)
  • poly(isobutylene) standard 856000
  • hyvis2000
  • hyvis30
  • indopolh1900
  • Isobutene-,homopolymer
  • isobutenehomopolymer
  • isobutenepolymer
  • isobutylenehomopolymer
  • POLYISOBUTYLENE(C12-C20)
  • maxvis2000
  • napvis30
  • oktol
  • oppanolb
  • oppanolb100
  • oppanolb15
  • oppanolb150
  • oppanolb200
  • oppanolb3
  • p118
  • p20
  • p200
  • paratac
  • paxon3204
  • pb150
  • pib100
  • poly(2-methylpropene)
  • polyisobutylenepsg
  • polyvis06sh
  • polyvis150sh
  • polyvis200sh
  • POLY(ISOBUTYLENE) 390