345334

Poly(tetrahydrofuran)

average M_n ~2,900

• Synonym(s): α-Hydro-ω-hydroxypoly(oxy-1,4-butanediyl), Poly(1,4-butanediol), polyTHF
• Linear Formula: H(OCH₂CH₂CH₂CH₂)_nOH
• CAS Number: 25190-06-1
• MDL number: MFCD00148879
• UNSPSC Code: 12162002
• PubChem Substance ID: 24861311
• NACRES: NA.23

Properties

• vapor pressure: <0.01 mmHg ( 25 °C); <1 mmHg ( 20 °C)
• Quality Level: 200
• form: solid
• mol wt: average M_n ~2,900
• mp: 30-43 °C
• density: 0.97 g/mL at 25 °C
• SMILES string: 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

Description

General description

Poly(tetrahydrofuran) (PTHF) is a polyether that can be prepared by the cationic polymerization of tetrahydrofuran in the presence of a variety of initiator systems.

Application

PTHF can be used in the preparation of soft segment polyurethane for a variety of applications. It can also be used in the surface modification of cellulose fibers which can further be used as reinforcing polymerix materials.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302,H336
• pcodes: P261 - P264 - P270 - P271 - P301 + P312 - P304 + P340 + P312
• Hazard Classifications: Acute Tox. 4 Oral - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: >325.4 °F - Tag open cup
• flash_point_c: > 163 °C - Tag open cup
• ppe: dust mask type N95 (US), Eyeshields, Gloves