Poly(tetrahydrofuran)
Poly(tetrahydrofuran) Basic information
- Product Name:
- Poly(tetrahydrofuran)
- Synonyms:
-
- 4-butanediyl),.alpha.-hydro-.omega.-hydroxy-poly(oxy-1
- alpha-hydro-omega-hydroxy-poly(oxy-4-butanediyl)
- b2000
- glycols,polytetramethylene
- hiprenemc532
- polifurit
- poly(butyleneoxide)
- poly(oxy-1,4-butylene)glycol
- CAS:
- 25190-06-1
- MF:
- (C4H8O)nH2O
- MW:
- 305.43
- EINECS:
- 607-637-9
- Product Categories:
-
- Ethers
- Hydrophobic Polymers
- Materials Science
- Polymer Science
- Polymers
- Tetrahydrofuran
- Mol File:
- 25190-06-1.mol
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Poly(tetrahydrofuran) Chemical Properties
- Melting point:
- 33-36 °C
- Boiling point:
- >204
- Density
- 1 g/mL at 25 °C
- vapor pressure
- <0.01 mm Hg ( 25 °C)
- refractive index
- n20/D 1.465
- Flash point:
- >230 °F
- storage temp.
- Store below +30°C.
- solubility
- <10g/l
- form
- Fused mass
- Specific Gravity
- 0.961
- PH
- 7 (H2O, 20℃)Aqueous solution
- EPA Substance Registry System
- Poly(oxy-1,4-butanediyl), .alpha.-hydro-.omega.-hydroxy- (25190-06-1)
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MSDS
- Language:English Provider:SigmaAldrich
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Poly(tetrahydrofuran) Usage And Synthesis
Chemical Properties
mp 11 - 38 °C 100 - 4,400 mPa.s @ 40 °C
Definition
ChEBI: A macromolecule composed of repeating oxybutylene units.
Preparation
Low molecular weight polymers of tetrahydrofuran were introduced commercially in 1955. The polymers were intended for use in the preparation of
flexible polyurethane foams, being terminated by hydroxyl groups:
Although these polyethers produced good foams they were rather expensive and were soon displaced by the cheaper propylene oxide-based polyethers. However, these polymers of tetrahydrofuran (commonly called poly(oxytetramethylene)glycol) now find use in the preparation of polyamide, polyester and polyurethane thermoplastic elastomers.
Details of the manufacture of polytetrahydrofuran have not been disclosed. Polymerization of tetrahydrofuran can be effected only by cationic initiators. Combinations of metal halides with water are not effective but protic acids (e.g. HCl04) and oxonium salts (e.g. (C2H5￡?3O+BF4-) are efficient initiators. Polymerization occurs by a ring-opening mechanism involving a tertiary oxonium ion, e.g.
Solubility in organics
Alcohol, slightly in water; Insoluble in ether
Poly(tetrahydrofuran)Supplier
Hebei Zhentian Food Additives Co., Ltd. Gold
- Tel
- 0319-5925599 13373390591
- 13933732699@163.com
Shanghai Zheyan Biotech Co., Ltd. Gold
- Tel
- 021-18017610038 18017610038
- 897493074@qq.com
Beijing HwrkChemical Technology Co., Ltd
- Tel
- 010-89508211 18501085097
- sales.bj@hwrkchemical.com
Energy Chemical
- Tel
- 021-021-58432009 400-005-6266
- sales8178@energy-chemical.com
Shanghai Hanhong Scientific Co.,Ltd.
- Tel
- 021-54306202 13764082696
- info@hanhongsci.com
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Poly(tetrahydrofuran)(25190-06-1)Related Product Information
- Propylene glycol
- 2,3-Butanediol
- 2-Butoxyethyl acetate
- 1-Methoxy-2-propyl acetate
- Allyloxypolyethyleneglycol
- 1,4-Butanediol
- 2,2-Dimethyl-1,3-propanediol
- 2-Phenoxyethanol
- POLY(1,4-BUTANEDIOL SUCCINATE) [LIQUID PHASE FOR GC]
- 2-Methyltetrahydrofuran
- 2-Butoxyethanol
- 1,3-Butanediol
- Ethylene glycol
- Polyethylene Glycol
- Triton X-100
- 2-Ethoxyethanol
- Tetrahydrofuran
- Estradiol