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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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1 EACH
CN¥648.15
1 KG
CN¥2,277.35

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

CN¥648.15

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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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This Item
W2186181084215W269301
Allyl butyrate ≥98%, FG

Sigma-Aldrich

W202118

Allyl butyrate

Butyl butyrate ≥98%, FCC, FG

Sigma-Aldrich

W218618

Butyl butyrate

Allyl butyrate United States Pharmacopeia (USP) Reference Standard

USP

1084215

Allyl butyrate

Methyl butyrate ≥98%, FG

Sigma-Aldrich

W269301

Methyl butyrate

grade

FG, Kosher, Halal

grade

FG, Halal, Kosher

grade

pharmaceutical primary standard

grade

FG, Fragrance grade, Halal, Kosher

organoleptic

green; waxy; fruity; sweet

organoleptic

green; fruity; sweet

organoleptic

-

organoleptic

apple; ethereal

biological source

synthetic

biological source

synthetic

biological source

-

biological source

synthetic

food allergen

no known allergens

food allergen

no known allergens

food allergen

-

food allergen

no known allergens

agency

meets purity specifications of JECFA

agency

meets purity specifications of JECFA

agency

-

agency

(EU Regulation 1223/2009), (follows IFRA guidelines), meets purity specifications of JECFA

documentation

see Safety & Documentation for available documents

documentation

see Safety & Documentation for available documents

documentation

-

documentation

see Safety & Documentation for available documents

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
  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCZ4546
    MKCZ0832
    MKCX8268
    MKCS6028
    MKCS6903

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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
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