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Sigma-Aldrich

Polybutadiene

average Mw ~200,000

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About This Item

Linear Formula:
(CH2CH=CHCH2)n
CAS Number:
9003-17-2
MDL number:
MFCD00084398
UNSPSC Code:
12162002
PubChem Substance ID:
24850930
NACRES:
NA.23

form

slabs

mol wt

average Mw ~200,000

composition

cis-1,4, 36%
trans-1,4, 55%
vinyl, 9%

refractive index

n20/D 1.5178

transition temp

Tg −95 °C

solubility

cyclohexane: 8.38 (solubility parameter)

density

0.9 g/mL at 25 °C (lit.)

InChI

1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3+

InChI key

IAQRGUVFOMOMEM-ONEGZZNKSA-N

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General description

Polybutadiene is a synthetic rubber that is produced by solution polymerization of 1,3-butadiene. It has excellent mechanical properties which include low temperature flexibility and abrasion resistance. It can be cured by using sulfur based donors and peroxides to result in a highly cross-linked polymer with high resilience.

Application

Polybutadiene is mainly blended with natural rubber and styrene butadiene rubber in the manufacturing of tyres. It can also be used in the development of conveyor and transmission belts.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Modification of butadiene-acrylonitrile rubber/poly (vinyl chloride) blend using natural rubber, styrene-butadiene rubber, and polybutadiene rubber
George KE, et al.
Polym. Eng. Sci., 27(15), 1137-1140 (1987)
Rubber Basics (2002)
Handbook of Poylmer-Liquid Interaction Parameters and Solubility Parameters (1990)
Pyrolysis-thermogravimetric analysis of tyres and tyre components
Williams PT and Besler S
Fuel: The Science and Technology of Fuel and Energy, 74(9), 1277-1283 (1995)
Dong Wu et al.
Journal of the American Chemical Society, 132(45), 15936-15938 (2010-10-28)
Single-molecule force spectroscopy is used to observe the irreversible extension of a gem-dibromocyclopropane (gDBC)-functionalized polybutadiene under tension, a process akin to polymer necking at a single-molecule level. The extension of close to 28% in the contour length of the polymer
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