Skip to Content
Merck
All Photos(1)

Documents

181498

Sigma-Aldrich

Polyisobutylene

average Mw ~4,200,000, average Mn ~3,100,000 by GPC/MALLS, average Mv ~4,700,000

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
[CH2C(CH3)2]n
CAS Number:
9003-27-4
MDL number:
MFCD00084436
UNSPSC Code:
12162002
PubChem Substance ID:
24850938

form

slab/chunk

mol wt

average Mn ~3,100,000 by GPC/MALLS
average Mv ~4,700,000
average Mw ~4,200,000

contains

500 ppm BHT as stabilizer

refractive index

n20/D 1.51

density

0.92 g/mL at 25 °C (lit.)

SMILES string

CC(C)=C

InChI

1S/C4H8/c1-4(2)3/h1H2,2-3H3

InChI key

VQTUBCCKSQIDNK-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

General description

Polyisobutylene (PIB) is an elastomer and plasticizer.It exhibits good gas permeability, thermal, oxidative and chemical stability. Films of PIB can be synthesized by RF sputtering, whereas branched PIB can be synthesized from 4-(1-hydroxy-1-methylethyl)styrene -co-styrene (HMESt-co-St) as inimer.

Application

PIB may be used to prepare polymers blends with isotactic polypropylene (iPP).

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Morphology, crystallization and melting behaviour of films of isotactic polypropylene blended with ethylene-propylene copolymers and polyisobutylene,
Martuscelli E, et al.
Polymer, 23(2), 229-237 (1982)
Dynamic rheological properties of polyisobutylene
Dunlop AN and Williams HL
Journal of Applied Polymer Science, 20, 193-206 (1976)
Yanfei Yang et al.
Journal of the American Chemical Society, 134(36), 14714-14717 (2012-08-29)
The studies described here show that a relatively low molecular weight, narrow polydispersity polyethylene (PE) wax (Polywax) can serve as a nontoxic and nonvolatile alternative to alkane solvents in monophasic catalytic organic reactions where catalysts and products are separated under
Deniz C Tuncaboylu et al.
Langmuir : the ACS journal of surfaces and colloids, 26(10), 7574-7581 (2010-01-29)
Organic-inorganic hybrid materials attract particular interest because of their excellent mechanical properties. Here, we report the synthesis of hybrid cryogels consisting of interpenetrated polyisobutylene and silica networks. The gels were prepared by cross-linking of butyl rubber in cyclohexane containing silica
Judit E Puskas et al.
Biomaterials, 31(9), 2477-2488 (2009-12-26)
This paper presents the synthesis and characterization of a polyisobutylene (PIB)-based nanostructured carbon-reinforced thermoplastic elastomer. This thermoplastic elastomer is based on a self-assembling block copolymer having a branched PIB core carrying -OH functional groups at each branch point, flanked by
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service