Polyisobutylene CAS#9003-27-4

CAS Number: 9003-27-4
Chemical Formula: C4H8
Synonyms:

POLY(ISOBUTYLENE) STANDARD 134`000, FOR GPC
POLY(ISOBUTYLENE) STANDARD 680, FOR
POLY(ISOBUTYLENE) STANDARD 2'500 FOR &

Appearance: White to off-white Liquid

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Polyisobutylene CAS#9003-27-4

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.

Polyisobutylene Chemical Properties

Melting point	54-56 °C
Boiling point	300 °C
density	0.92 g/mL at 25 °C (lit.)
Tg	-61
Tg	-62
Tg	-64
Tg	-75
refractive index	n20/D 1.51
Fp	>212
Fp	>482
form	slab/chunk
color	colorlessor white
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
Surface tension	33.6mN/m at 20°C
EPA Substance Registry System	Polyisobutylene (9003-27-4)

Safety Information

Safety Statements	24/25
WGK Germany	3
RTECS	UD1010000
TSCA	TSCA listed
HS Code	39022000
Hazardous Substances Data	9003-27-4(Hazardous Substances Data)

Product Application of Polyisobutylene CAS#9003-27-4

Polyisobutylene (PIB) is a vinyl polymer with a uniquely low water diffusion rate and low glass transition temperature (Tg) (-75 °C). It is widely available for use in the following ways:
(1) PIB can be used as a common encapsulation material for photovoltaic modules.
(2) Chemically inert elastomers with oxidation and thermal degradation resistance and low gas permeability.
(3) Plasticisers in rubber formulations and sporting goods (e.g. golf clubs, tennis rackets, grips for bicycles and tools).

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