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388637 Aldrich

Polybutenes

average Mn ~320, isobutylene >90 %

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Properties

Related Categories Butene and Higher, Hydrophobic Polymers, Materials Science, Olefins, Polymer Science,
InChI Key   WTOOLIQYCQJDBG-BJILWQEISA-N
mol wt   average Mn ~320
composition   isobutylene, >90%
refractive index   n20/D 1.468
viscosity   27-33 cSt(38 °C)(lit.)
transition temp   Tg −90.5 °C
  pour point (ASTM D 97) −51 °C
density   0.84 g/mL at 25 °C

Description

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.

Other Notes

remainder 1- and 2-butenes

Physical form

Terminal vinyl group.

Price and Availability


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Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
EM9032000
Flash Point(F) 
>235.4 °F
Flash Point(C) 
>113 °C
Protocols & Articles
Peer-Reviewed Papers
15

References

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