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388696

Sigma-Aldrich

Polybutenes

average Mn ~920 by VPO, isobutylene >90 %

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About This Item

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

Formulário

liquid

peso molecular

average Mn ~920 by VPO

composição

isobutylene, >90%

viscosidade

200-235 cSt(100 °C)(lit.)

temperatura de transição

pour point (ASTM D 97) −7 °C

densidade

0.89 g/mL at 25 °C

cadeia de caracteres SMILES

CCC=C.C\C=C\C

InChI

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

chave InChI

WTOOLIQYCQJDBG-BJILWQEISA-N

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Aplicação

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.

Características e benefícios

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

forma física

Terminal vinyl group.

Outras notas

remainder 1- and 2-butenes

Pictogramas

Health hazardExclamation mark
GHS08,GHS07

Palavra indicadora

Danger

Frases de perigo

H304,H315

Classificações de perigo

Asp. Tox. 1 - Skin Irrit. 2

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

159.8 °F - closed cup

Ponto de fulgor (°C)

71 °C - closed cup

Equipamento de proteção individual

Eyeshields, Gloves

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Certificados de análise (COA)

Lot/Batch Number
MKBD9805V
05402DR
01811PY

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Syutaro Yamamoto et al.
Journal of oleo science, 56(9), 463-469 (2007-09-28)
Water-soluble metal working fluids are used for processing of aluminum alloy materials. This short article describes properties of new additives in water-soluble metal working fluids for aluminum alloy materials. Many half esters or diesters were prepared from the reactions of
John B Williams et al.
Analytical chemistry, 75(13), 3092-3100 (2003-09-11)
The mass dependency of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) response has been studied using equimolar mixtures of synthetic discrete mass poly(butylene glutarate) (PBG) oligomers of known structure having degrees of polymerization of 8, 16, 32, and 64. Mass
Colin Booth et al.
Physical chemistry chemical physics : PCCP, 8(31), 3612-3622 (2006-08-03)
The article deals with the association behaviour in dilute aqueous solution of block copoly(oxyalkylene)s in which hydrophilic poly(ethylene oxide) is combined with hydrophobic poly(propylene oxide), poly(1,2-butylene oxide) or poly(styrene oxide). Polymers with three simple architectures are considered, i.e. copolymers of
X Y Wu et al.
The British journal of ophthalmology, 82(5), 569-576 (1998-08-26)
The goal was to compare the biological response of the corneal stroma with three porous materials: a melt blown microfibre web of polybutylene:polypropylene (80:20); a polyester spun laced fabric (polyethylene terephthalate), and an expanded polytetrafluoroethylene. Fifty per cent of each
Huaiyu Wang et al.
Acta biomaterialia, 5(1), 279-287 (2008-09-02)
Poly(butylene succinate) (PBSu), a novel biodegradable aliphatic polyester with excellent processability and mechanical properties, is a promising substance for bone and cartilage repair. However, it typically suffers from insufficient biocompatibility and bioactivity after implantation into the human body. In this
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