Poly(tetrahydrofuran)
|
|
|
- CAS-Nr.
- 25190-06-1
- Englisch Name:
- Poly(tetrahydrofuran)
- Synonyma:
- ptmg;ptmg1000;PTMEG 2000;POLYTETRAHYDROFURAN;PTHF;ptmg2000;PTMEG 1000;TETRAMETHYLENE ETHER GLYCOL 2000 POLYMER;ptg200;polymeg
- CBNumber:
- CB6323066
- Summenformel:
- (C4H8O)nH2O
- Molgewicht:
- 305.43
- MOL-Datei:
- 25190-06-1.mol
|
Poly(tetrahydrofuran) Eigenschaften
- Schmelzpunkt:
- 33-36 °C
- Siedepunkt:
- >204
- Dichte
- 1 g/mL at 25 °C
- Dampfdruck
- <0.01 mm Hg ( 25 °C)
- Brechungsindex
- n20/D 1.465
- Flammpunkt:
- >230 °F
- storage temp.
- Store below +30°C.
- L?slichkeit
- <10g/l
- Aggregatzustand
- Fused mass
- Wichte
- 0.961
- PH
- 7 (H2O, 20℃)Aqueous solution
- Wasserl?slichkeit
- <10g/L
- InChI
- 1S/C8H18O2/c1-3-5-6-10-8(4-2)7-9/h8-9H,3-7H2,1-2H3/t8-/m0/s1
- InChIKey
- BJZYYSAMLOBSDY-QMMMGPOBSA-N
- SMILES
- OCCCCO
- Oberfl?chenspannung
- 31.9mN/m at 20°C
- EPA chemische Informationen
- Poly(oxy-1,4-butanediyl), .alpha.-hydro-.omega.-hydroxy- (25190-06-1)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
| Kennzeichnung gef?hrlicher |
Xi |
|
|
| R-S?tze: |
36/37/38 |
|
|
| S-S?tze: |
26-36 |
|
|
| WGK Germany |
1 |
|
|
| RTECS-Nr. |
MD0916000 |
|
|
| TSCA |
TSCA listed |
|
|
| HS Code |
3907 20 20 |
|
|
| Speicherklasse |
11 - Combustible Solids |
|
|
| Hazard Classifications |
Acute Tox. 4 Oral
STOT SE 3 |
|
|
| Toxizit?t |
LD50 orally in Rabbit: > 5000 mg/kg |
|
|
| Bildanzeige (GHS) |
|
| Alarmwort |
Warnung
|
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H412 |
Sch?dlich für Wasserorganismen, mit langfristiger Wirkung. |
Langfristig (chronisch) gew?ssergef?hrdend |
Kategorie 3 |
|
|
P273, P501 |
|
| Sicherheit |
| P273 |
Freisetzung in die Umwelt vermeiden. |
|
Poly(tetrahydrofuran) Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-S?tze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
mp 11 - 38 °C 100 - 4,400 mPa.s @ 40 °C
synthetische
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.
Definition
ChEBI: A macromolecule composed of repeating oxybutylene units.
Poly(tetrahydrofuran) Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Poly(tetrahydrofuran) Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 278)Lieferanten
25190-06-1()Verwandte Suche:
Propan-1,2-diol
Butan-2,3-diol
2-Butoxy-ethylacetat
Allyloxypolyethyleneglycol
Butan-1,4-diol
2,2-Dimethylpropan-1,3-diol
Ethylenglykolmonophenylether
POLY(1,4-BUTANEDIOL SUCCINATE) [LIQUID PHASE FOR GC]
Tetrahydro-2-methylfuran
2-Butoxy-ethanol
Ethylenglykolmonoethylether
Tetrahydrofuran
OCTYLPHENYLPOLYETHYLENE GLYCOL
Poly(ethylene glycol)
2-Methoxy-1-methylethylacetat
Ethandiol
Butan-1,3-diol
Estra-1,3,5(10)-trien-3,17α-diol
- alpha-hydro-omega-hydroxy-poly(oxy-4-butanediyl)
- b2000
- glycols,polytetramethylene
- hiprenemc532
- polifurit
- poly(butyleneoxide)
- poly(oxy-1,4-butylene)glycol
- poly(oxybutylene)glycol
- poly(oxytetramethylene)
- poly(oxytetramethylene)diol
- poly(tetramethyleneether)
- poly(tetramethyleneether)diol
- poly(tetramethyleneglycol)
- poly(tetramethyleneoxide)glycol
- polyfurit
- polyfurit1000
- polyfurite
- polymeg1000
- polymeg1020
- polymeg2000
- polymeg2010
- polymeg600
- polymeg650
- polytetramethyleneetherglycols
- polytetramethyleneglycol
- ptg100
- ptg300
- ptg400
- ptg500
- ptg500p
- qopolymeg
- qopolymeg1000
- teracol
- teracol1000
- teracol2000
- teracol30
- teracol650
- terathane1000
- terathane2900
- Tetrahydrofuranhomopolymer
- POLYETETRAHYDROFURAN, LINEAR-CHAIN POLYMER
- POLY(1,4-OXYBUTYLENE) GLYCOL
- POLYTETRAHYDROFURAN 1000
- POLYTETRAHYDROFURAN 1000 S
- POLYTETRAHYDROFURAN 1400
- POLYTETRAHYDROFURAN 1800
- POLY(TETRAMETHYLENE ETHER) GLYCOL
- POLYTETRAMETHYLENE ETHER GLYCOL 1000
- POLYTETRAMETHYLENE ETHER GLYCOL 1000 S
- POLYTETRAHYDROFURAN 2000
- POLYTETRAHYDROFURAN 250
- POLYTETRAHYDROFURAN 650 S
- POLYTETRAHYDROFURAN, LINEAR-CHAIN POLYMER
- POLY(TETRAMETHYLENE OXIDE) 2,000
- POLY (TETRAMETHYLENE OXIDE) 650
- POLYTETRAMETHYLENE ETHER GLYCOL 1400
- POLYTETRAMETHYLENE ETHER GLYCOL 1800
- POLYTETRAMETHYLENE ETHER GLYCOL 2000
