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181455

Sigma-Aldrich

Polyisobutylene

average Mw ~500,000, average Mn ~200,000 by GPC/MALLS, average Mv ~420,000

Synonym(s):

PIB, polyisobutene

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About This Item

Linear Formula:
[CH2C(CH3)2]n
CAS Number:
9003-27-4
MDL number:
MFCD00084436
UNSPSC Code:
12162002
PubChem Substance ID:
24850935
NACRES:
NA.23

form

chunks

Quality Level

100

mol wt

average Mn ~200,000 by GPC/MALLS
average Mv ~420,000
average Mw ~500,000

refractive index

n20/D 1.5045

transition temp

Tg −64 °C

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

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General description

Polyisobutylene is a non-toxic hydrophobic polymer that exhibits excellent flexibility at ambient temperatures, biostability, and biocompatibility. It can be used as a polymer matrix to encapsulate quantum dots and for various biomedical applications.

Application

  • The use of polyisobutylene-based polymers in ophthalmology: Discusses the application of polyisobutylene-based polymers in ophthalmologic devices, highlighting its potential in biomedical applications (L Pinchuk, 2022).
  • Synthesis of a polyisobutylene-tagged fac-Ir (ppy) 3 complex and its application as recyclable visible-light photocatalyst in a continuous flow process: Presents a novel use of polyisobutylene as a support for photocatalysts, enhancing recyclability and efficiency in light-driven chemical reactions (D Rackl, P Kreitmeier, O Reiser, 2016).
  • Polyisobutylene-based thermoplastic elastomers for manufacturing polymeric heart valve leaflets: In vitro and in vivo results: Explores the use of polyisobutylene-based elastomers in the production of heart valve leaflets, assessing their physical properties and compatibility (E Ovcharenko et al., 2019).
  • Polyisobutylene—new opportunities for medical applications: Reviews the potential of polyisobutylene in various medical applications, focusing on its properties and benefits for healthcare materials (D Barczikai et al., 2021).
  • Homogeneous and heterogeneous catalysts for the synthesis of highly reactive polyisobutylene: discovery, development and perspectives: Discusses advancements in catalyst technology for producing high-reactivity polyisobutylene, crucial for high-performance materials (IV Vasilenko, SV Kostjuk, 2021).

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCS6028
MKCS6903
MKCT7425
MKCR4281
MKCQ7747

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Corinne Vebert-Nardin
Chimia, 65(10), 782-786 (2011-11-08)
With this article, we wish to give an overview of our main research activities assessing the potential of a suitable polymer modification of DNA fragments to self-assemble biologically active nanostructures. Specifically, the grafting of a hydrophobic polymer segment on DNA
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
Hong Seok Choi et al.
Langmuir : the ACS journal of surfaces and colloids, 28(1), 849-854 (2011-11-25)
The optical properties of polymeric materials, such as transmission loss and the thermo-optic coefficient, determine their utility in numerous applications, ranging from nanotechnology to the automotive and aerospace industries. However, because of the wide variation in the physical properties of
Seyed Mojtaba Taghizadeh et al.
Drug development and industrial pharmacy, 35(4), 487-498 (2008-12-02)
In this study, the influence of the ratio of silicone (Si) to acrylic pressure-sensitive adhesive (PSA), polyvinyl pyrrolidone (PVP), and lauryl alcohol (LA) % (wt/wt) on the properties of a drug in adhesive patch containing 4% (wt/wt) fentanyl as model
A Jonás et al.
Langmuir : the ACS journal of surfaces and colloids, 26(17), 14223-14230 (2010-08-05)
Diffusive mixing in a model polymer blend of limited miscibility (i.e., the pair polydimethylsiloxane/polyisobutene) is investigated. The diffusion process is followed in the actual droplet-based microstructure of the polymer blend, as opposed to the ideal planar geometry used in previous
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