181455
Polyisobutylene
average Mw ~500,000, average Mn ~200,000 by GPC/MALLS, average Mv ~420,000
Sinónimos:
PIB, polyisobutene
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About This Item
Fórmula lineal:
[CH2C(CH3)2]n
Número de CAS:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
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form
chunks
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
10 - Combustible liquids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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Goy Teck Lim et al.
Biomacromolecules, 12(5), 1795-1799 (2011-04-01)
This paper is the first report of electrospinning neat polyisobutylene-based thermoplastic elastomers. Two generations of these materials are investigated: a linear poly(styrene-b-isobutylene-b-styrene) (L_SIBS) triblock copolymer and a dendritic poly(isobutylene-b-p-methylstyrene) (D_IB-MS), also a candidate for biomedical applications. Cross-polarized optical microscopy shows
David Cozzens et al.
Journal of biomedical materials research. Part A, 95(3), 774-782 (2010-08-21)
Long term in vitro biostability of thermoplastic polyurethanes (TPUs) containing mixed polyisobutylene (PIB)/poly(tetramethylene oxide) (PTMO) soft segment was studied under accelerated conditions in 20% H(2)O(2) solution containing 0.1M CoCl(2) at 50 °C to predict resistance to metal ion oxidative degradation
David Cozzens et al.
Langmuir : the ACS journal of surfaces and colloids, 27(23), 14160-14168 (2011-10-26)
The surface properties and biocompatibility of a class of thermoplastic polyurethanes (TPUs) with applications in blood-contacting medical devices have been studied. Thin films of commercial TPUs and novel polyisobutylene (PIB)-poly(tetramethylene oxide) (PTMO) TPUs were characterized by contact angle measurements, X-ray
Yanfei Yang et al.
Journal of the American Chemical Society, 134(36), 14714-14717 (2012-08-29)
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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
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