PolyTHF® - Polytetrahydrofuran
PolyTHF® is a colourless, clear liquid (lower molecular weights) or white, waxy solid at room temperature. It will melt to yield a co lourless, clear liquid. It is soluble in many conventional organic solvents, partly infinitely mixable. It is practically insoluble in water.
PolyTHF® is also an important intermediate in manufacturing thermoplastic polyurethane elastomers (TPU). These products are used for highly abrasion-resistant and flexible hoses, films and cable sheathing. Other applications include thermo-plastic polyetheresters, polyetheramide and cast polyurethane elastomers, provenin their use for skateboard wheels and inline skates.
BASF delivers PolyTHF® in the following molecular weights:
- PolyTHF® 250
- PolyTHF® 1400
- PolyTHF® 650
- PolyTHF® 1800
- PolyTHF® 1000
- PolyTHF® 2000
PolyTHF® is a polymer created by linking a series of identical units (=monomers) together, thus forming a chain.
The unit is tetrahydrofuran (THF); water (H-O-H) caps the ends.
PolyTHF® is the key raw material used to produce spandex fibers.
It is a polymer which, depending on its molecular weight, solidifies between -15 and 30°C in a waxy-like manner.
PolyTHF® is integrated by further reactions into polymers with molecular weights of 40,000 and higher.
Top performance features:
BASF’s PolyTHF® is an important intermediate in manufacturing thermoplastic polyurethane elastomers.
These products are used for the manufacturing of highly abrasion-resistant and flexible hoses, films and cable sheatings.
Other applications include thermoplastic polyetheresters, polyetheramide and cast polyurethane elastomers, proven for example in their use for skateboard and inline skates wheels.
Advantages as soft segment for elastomers:
low temperature flexibility
superior resistance against microbes and fungus attack
superior dynamic properties (minimum heat build-up)
high reactivity (bi-functional primary alcohol)
high tear strength