Surface Coating / Alfa Chemistry

Poly(tetrahydrofuran), average Mn ~1000

Cat.No ACM25190061-11

Basic Information Description Application Features And Benefits
CAS 25190-06-1
Catalog Number ACM25190061-11
Synonyms α-Hydro-ω-hydroxypoly(oxy-1,4-butanediyl), Poly(1,4-butanediol), polyTHF
Molecular Weight average Mn ~1,000
Molecular Formula H(OCH2CH2CH2CH2)nOH
InChI 1S/C8H18O2/c1-3-5-6-10-8(4-2)7-9/h8-9H,3-7H2,1-2H3/t8-/m0/s1
Melting Point 25-33 °C
Density 0.974 g/mL at 25 °C
Contains 0.05-0.07% BHT as stabilizer
MDL Number MFCD00148879
PubChem ID 24861307
Quality Level 200
Storage Temperature 2-8°C
Vapor Pressure <0.01 mmHg ( 25 °C)
<1 mmHg ( 20 °C)
Description Polytetrahydrofuran is an organic polymer compound. It can be regarded as the product of tetrahydrofuran (THF) ring-opening intermolecular polymerization; or the product of intermolecular polycondensation of 1,4-butanediol, so it is also called (poly(tetramethylene ether) glycol, abbreviated as PTMEG).
Application Polytetrahydrofuran is mainly used in the synthesis of elastic fibers, such as spandex and polyurethane. In the latter process the polyurethane is first dissolved in the solvent as one of the precursors. When used in the manufacture of artificial leather, polytetrahydrofuran and isocyanate are the same raw materials, or react with other derivatives of isocyanate to obtain polyurethane
Features And Benefits Commercially available polytetrahydrofuran has a lower molecular weight, between 250 and 3000. This product appears as a white waxy solid with a melting point of 30 °C. After treatment, high polymers with molecular weights above 40,000 can be obtained.

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