ChemicalBook > CAS DataBase List > Poly(tetrahydrofuran)
Poly(tetrahydrofuran)
- Product Name
- Poly(tetrahydrofuran)
- CAS No.
- 25190-06-1
- Chemical Name
- Poly(tetrahydrofuran)
- Synonyms
- ptmg;PTMEG 2000;ptmg1000;POLYTETRAHYDROFURAN;PTHF;PTMEG 1000;TETRAMETHYLENE ETHER GLYCOL 2000 POLYMER;ptmg2000;polymeg;PTMEG 250
- CBNumber
- CB6323066
- Molecular Formula
- C16H33O5X2
- Formula Weight
- 305.43
- MOL File
- 25190-06-1.mol
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Poly(tetrahydrofuran) Property
- Melting point:
- 33-36 °C
- 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
- 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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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 8.18402
- Product name
- Polytetrahydrofuran 1000
- Purity
- (stabilisedwith2,6-di-tert-butyl-4-methylphenol)forsynthesis
- Packaging
- 100g
- Price
- $39.5
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 8.18402
- Product name
- Polytetrahydrofuran 1000
- Purity
- (stabilisedwith2,6-di-tert-butyl-4-methylphenol)forsynthesis
- Packaging
- 500g
- Price
- $57.5
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 345261
- Product name
- Poly(tetrahydrofuran)
- Purity
- average Mn ~250
- Packaging
- 1l
- Price
- $122
- Updated
- 2023/06/20
Sigma-Aldrich
- Product number
- 345261
- Product name
- Poly(tetrahydrofuran)
- Purity
- average Mn ~250
- Packaging
- 3l
- Price
- $259
- Updated
- 2023/06/20
Sigma-Aldrich
- Product number
- 345334
- Product name
- Poly(tetrahydrofuran)
- Purity
- average Mn ~2,900, contains 300-500 ppm BHT as stabilizer
- Packaging
- 25ml
- Price
- $66.5
- Updated
- 2024/03/01
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Poly(tetrahydrofuran) Chemical Properties,Usage,Production
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.
Poly(tetrahydrofuran) Preparation Products And Raw materials
Raw materials
Preparation Products
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Poly(tetrahydrofuran) Suppliers
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View Lastest Price from Poly(tetrahydrofuran) manufacturers
airuikechemical co., ltd.
- Product
- Petroleum resin C5 25190-06-1
- Price
- US $0.00-0.00/Kg
- Min. Order
- 1Kg
- Purity
- 99.9%
- Supply Ability
- 20 tons
- Release date
- 2024-03-13
airuikechemical co., ltd.
- Product
- poly(tetrahydrofuran) 25190-06-1
- Price
- US $0.00-0.00/Kg
- Min. Order
- 1Kg
- Purity
- 99.9%
- Supply Ability
- 20 tons
- Release date
- 2024-03-13
Hebei Yanxi Chemical Co., Ltd.
- Product
- Poly(tetrahydrofuran) 25190-06-1
- Price
- US $40.00-40.00/kg
- Min. Order
- 1kg
- Purity
- 0.99
- Supply Ability
- 10 tons
- Release date
- 2023-09-11
25190-06-1, Poly(tetrahydrofuran)Related Search:
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