2,2'-p-Phenylendioxydiethanol

Bezeichnung:2,2'-p-Phenylendioxydiethanol

CAS-Nr104-38-1

Englisch Name:Hydroquinone bis(2-hydroxyethyl)ether

CBNumberCB2708881

SummenformelC10H14O4

Molgewicht198.22

MOL-Datei104-38-1.mol

Synonyma

2,2'-p-Phenylendioxydiethanol

2,2'-p-Phenylendioxydiethanol physikalisch-chemischer Eigenschaften

Schmelzpunkt	100-102 °C(lit.)
Siedepunkt	185-200 °C (0.3 mmHg)
Dichte	1.0143 (rough estimate)
Dampfdruck	0.45Pa at 45℃
Brechungsindex	1.4720 (estimate)
storage temp.	Inert atmosphere,Room Temperature
pka	13.99±0.10(Predicted)
Aggregatzustand	Crystalline Powder or Flakes
Farbe	White to off-white
Geruch (Odor)	odorless
Wasserlöslichkeit	practically insoluble
Sensitive	Hygroscopic
InChIKey	WTPYFJNYAMXZJG-UHFFFAOYSA-N
LogP	0.41 at 30℃
CAS Datenbank	104-38-1(CAS DataBase Reference)
EPA chemische Informationen	Ethanol, 2,2'-[1,4-phenylenebis(oxy)]bis- (104-38-1)

Sicherheit

S-Sätze:	24/25
WGK Germany	1
Selbstentzündungstemperatur	874 °F
TSCA	Yes
HS Code	29094990

Gefahreninformationscode (GHS)

Hydroquinone bis(2-hydroxyethyl)ether Chemische Eigenschaften,Einsatz,Produktion Methoden

S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
Beschreibung
Hydroquinone bis(2-hydroxyethyl) ether (HQEE) is a kind of polyurethane chain extender synthesized by hydroquinone (HQ) and ethylene oxide (EO). With different molar ratios of hydroquinone bis(2-hydroxyethyl)ether (HQEE)/1,4-butanediol 9/91, 18/82 and 27/73, a series of thermoplastic poly(butylene-co-hydroquinone bis(2-hydroxyethyl)ether terephthalates) (PBHT) were synthesized via melt polycondensation. The incorporation of the HQEE group significantly improved the thermal properties of the polymers. However, HQEE did not change the crystal structure of PBT. The Tm values of the copolymers decreased (from 208?°C to 174?°C) with increasing content of HQEE segments, on the contrary, Tg values increased (from 37?°C to 43?°C)[1-2].
Chemische Eigenschaften
white to off-white crystalline powder or flakes
Verwenden
Hydroquinone bis(2-hydroxyethyl) ether is used to produce 1,4-bis-(2-bromo-ethoxy)-benzene.
Verwenden
Preparation of polyester, polyolefins, polyurethanes, and hard waxy resins, organic synthesis.
Synthesis Reference(s)
Tetrahedron Letters, 29, p. 163, 1988 DOI: 10.1016/S0040-4039(00)80042-8
Flammability and Explosibility
Non flammable
Einzelnachweise
[1] Mei-Fei Wang. “Separation and Identification of Relative Substances in Polyurethane Chain Extender Hydroquinone Bis(2-hydroxyethyl) Ether by High Performance Liquid Chromatography with Photodiode Array Detection and Electrospray Ionization Mass Spectrometry.” Industrial Engineering Chemistry Research 48 5 (2009): 2487–2492.
[2] Long Gu. “Synthesis and characterization of poly(butylene terephthalates) modified by hydroquinone bis(2-hydroxyethyl)ether.” Journal of Macromolecular Science, Part A 18 1 (2019): 871–876.

Hydroquinone bis(2-hydroxyethyl)ether Upstream-Materialien And Downstream Produkte

2,2'-p-Phenylendioxydiethanol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

104-38-1, Hydroquinone bis(2-hydroxyethyl)ether Verwandte Suche:

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