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Merck
CN

181382

Sigma-Aldrich

Polybutadiene

average Mw ~200,000

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About This Item

Linear Formula:
(CH2CH=CHCH2)n
CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
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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

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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)
Handbook of Poylmer-Liquid Interaction Parameters and Solubility Parameters (1990)
Rubber Basics (2002)
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)
Bounphanh Tonpheng et al.
Physical chemistry chemical physics : PCCP, 13(33), 15047-15054 (2011-07-22)
The thermal conductivity κ, heat capacity per unit volume ρc(p) and glass transition behaviour under pressure have been established for medium and high vinyl content polybutadiene PB with molecular weights 2600 and 100,000 and their highly cross-linked (ebonite) states obtained

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