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Key Documents

388696

Sigma-Aldrich

Polybutenes

average Mn ~920 by VPO, isobutylene >90 %

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About This Item

Formula condensata:
[-CH2C(CH3)2-]x[-CH2CH(C2H5)-]y
Numero CAS:
Numero MDL:
Codice UNSPSC:
12162002
ID PubChem:
NACRES:
NA.23

Forma fisica

liquid

PM

average Mn ~920 by VPO

Composizione

isobutylene, >90%

Viscosità

200-235 cSt(100 °C)(lit.)

Temp. transizione

pour point (ASTM D 97) −7 °C

Densità

0.89 g/mL at 25 °C

Stringa SMILE

CCC=C.C\C=C\C

InChI

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

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Applicazioni

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.

Caratteristiche e vantaggi

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

Stato fisico

Terminal vinyl group.

Altre note

remainder 1- and 2-butenes

Pittogrammi

Health hazardExclamation mark

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Asp. Tox. 1 - Skin Irrit. 2

Codice della classe di stoccaggio

10 - Combustible liquids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

159.8 °F - closed cup

Punto d’infiammabilità (°C)

71 °C - closed cup

Dispositivi di protezione individuale

Eyeshields, Gloves


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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
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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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