Poly(tetrahydrofuran), average Mn ~250

Cat.No ACM25190061-13

Basic Information Description Application Features And Benefits

CAS	25190-06-1
Catalog Number	ACM25190061-13
Synonyms	α-Hydro-ω-hydroxypoly(oxy-1,4-butanediyl), Poly(1,4-butanediol), polyTHF
Molecular Weight	average Mn ~250
Molecular Formula	H(OCH2CH2CH2CH2)nOH
Canonical SMILES	OCCCCO
InChI	1S/C8H18O2/c1-3-5-6-10-8(4-2)7-9/h8-9H,3-7H2,1-2H3/t8-/m0/s1
InChI Key	BJZYYSAMLOBSDY-QMMMGPOBSA-N
Melting Point	−14 °C
Density	1 g/mL at 25 °C
MDL Number	MFCD00148879
NACRES	NA.23
PubChem ID	24861305
Quality Level	200
Refractive Index	n20/D 1.46
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.