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Sigma-Aldrich

Polybutadiene, cis

average Mw 200,000-300,000

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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

description

98% cis

form

slab/chunk

mol wt

average Mw 200,000-300,000

viscosity

40, Mooney(lit.)

transition temp

Tg −102 °C

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

General description

Polybutadiene, cis (PB-cis) is a synthetic rubber that is prepared by solution polymerization of 1,4-butadiene. Its mechanical properties include low temperature flexibility and abrasion resistance. It can be cured by using sulfur based donors and peroxides and thus PB-cis acts as a highly cross-linked polymer with high resilience.

Application

PB-cis can be polymerized with styrene for the formation of high impact polystyrene (HIPS). It may also be used as a toughening agent for acrylonitrile butadiene rubber (ABS) based resins.

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)

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Rubber Basics, 80-81 (2002)
Role of the rubber particle and polybutadiene cis content on the toughness of high impact polystyrene
Rovere J, et al.
Journal of materials science & technology, 43(3), 952-959 (2008)
Handbook of Poylmer-Liquid Interaction Parameters and Solubility Parameters (2018)
Morphological, mechanical properties, and fracture behavior of bulk-made ABS resins toughened by high-cis polybutadiene rubber
Yu Z, et al.
Polym. Eng. Sci., 50(5), 961-969 (2010)
P S Brown et al.
Langmuir : the ACS journal of surfaces and colloids, 28(38), 13712-13719 (2012-09-13)
Two-dimensional hexagonally ordered honeycomb surfaces have been created by solvent casting polybutadiene films under controlled humidity. Subsequent CF(4) plasmachemical fluorination introduces cross-linking and surface texturing, leading to hierarchical surfaces with roughness on both the 10 μm (honeycomb) and micrometer (texturing)

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