181455
Polyisobutylene
average Mw ~500,000, average Mn ~200,000 by GPC/MALLS, average Mv ~420,000
Synonym(s):
PIB, polyisobutene
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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 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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Journal of the mechanical behavior of biomedical materials, 10, 206-215 (2012-04-24)
This study examines the morphology, thermal, quasi-static and long-term dynamic creep properties of one linear and three arborescent polyisobutylene-based block copolymers (L_SIBS31, D_IBS16, D_IBS27 and D_IBS33). Silicone rubber, a common biopolymer, was considered as a benchmark material for comparison. A
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
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
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
Physical chemistry chemical physics : PCCP, 13(5), 1843-1848 (2010-12-25)
Numerous experiments have shown that the low-temperature dynamics of a wide variety of disordered solids is qualitatively universal. However, most of these results were obtained with ensemble-averaging techniques which hide the local parameters of the dynamic processes. We used single-molecule
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