388653
Polybutenes
average Mn ~560 by VPO, isobutylene >90 %
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About This Item
Linear Formula:
[-CH2C(CH3)2-]x[-CH2CH(C2H5)-]y
CAS Number:
UNSPSC Code:
12162002
PubChem Substance ID:
MDL number:
mol wt
average Mn ~560 by VPO
composition
isobutylene, >90%
viscosity
29-35 cSt(99 °C)(lit.)
transition temp
pour point (ASTM D 97) −35 °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
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
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signalword
Danger
hcodes
Hazard Classifications
Asp. Tox. 1 - Skin Irrit. 2
Storage Class
10 - Combustible liquids
wgk
WGK 1
flash_point_f
159.8 °F - closed cup
flash_point_c
71 °C - closed cup
ppe
Eyeshields, Gloves
Regulatory Information
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Daniel Brassard et al.
Lab on a chip, 11(23), 4099-4107 (2011-11-02)
Microfluidics has emerged as a valuable tool for the high-resolution patterning of biological probes on solid supports. Yet, its widespread adoption as a universal biological immobilization tool is still limited by several technical challenges, particularly for the patterning of isolated
Takanori Tanino et al.
Applied microbiology and biotechnology, 82(1), 59-66 (2008-11-06)
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
M Risbud et al.
Biomaterials, 22(12), 1591-1597 (2001-05-26)
The aim of the study was to prepare composites of poly(butylene terepthalate)/wollastonite (PBT/W), evaluate their properties and in vitro biocompatibility. Composites of PBT with wollastonite in two different proportions, viz. 70/30 (PW-30), 50/50 (PW-50) were prepared. The DSC studies indicate