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388696

Sigma-Aldrich

Polybutenes

average Mn ~920 by VPO, isobutylene >90 %

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About This Item

Fórmula lineal:
[-CH2C(CH3)2-]x[-CH2CH(C2H5)-]y
Número de CAS:
9003-29-6
MDL number:
MFCD00197897
UNSPSC Code:
12162002
PubChem Substance ID:
24864243
NACRES:
NA.23

form

liquid

mol wt

average Mn ~920 by VPO

composition

isobutylene, >90%

viscosity

200-235 cSt(100 °C)(lit.)

transition temp

pour point (ASTM D 97) −7 °C

density

0.89 g/mL at 25 °C

SMILES string

CCC=C.C\C=C\C

InChI

1S/2C4H8/c2*1-3-4-2/h3-4H,1-2H3;3H,1,4H2,2H3/b4-3+;

InChI key

WTOOLIQYCQJDBG-BJILWQEISA-N

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Categorías relacionadas

Application

Hydrophobic material is derivatized to make detergents and anti-rust additives. Adds tack, flexibility and water repellency to adhesives and coatings. Contributes ′cling′ to LLDPE films. Plasticizer for polymers, lubricants and metal-working fluids.

Features and Benefits

Tackiness increases with molecular weight. Some internal double bonds may be present.

Physical form

Terminal vinyl group.

Other Notes

remainder 1- and 2-butenes

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

hcodes

H304,H315

Hazard Classifications

Asp. Tox. 1 - Skin Irrit. 2

Storage Class

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

159.8 °F - closed cup

flash_point_c

71 °C - closed cup

ppe

Eyeshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
MKBD9805V
01811PY
05402DR

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A Candida antarctica lipase B (CALB)-displaying yeast whole-cell biocatalyst was constructed with the integration of the CALB cell-surface display expression cassette in the yeast genome and cell fusion by mating. Lipase hydrolytic activity of the yeast whole-cell biocatalyst subsequently increased
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Analytical chemistry, 74(24), 6383-6391 (2003-01-04)
The performance of quartz crystal oscillator-based volatile organic compound (VOC) sensors has been enhanced by using coatings made from poly(styrene-block-ethylene-co-butylene-block-styrene) block copolymers blended with resins and homopolymers. Enhanced performance is characterized by a wider operational temperature range (-10 to +50
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Macromolecular bioscience, 12(2), 260-268 (2011-11-19)
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