Styrene → Diethylene Glycol Monoethyl Ether

HRID 126969

Reaktionsgleichung

Reaktionsgleichung von HRID 126969
C=CC1C=CC=CC=1.[CH2:9]([O:13][CH2:14][CH2:15][O:16][CH2:17][CH2:18][O:19]CCO)[CH2:10]CC.[NH2-].[Na+]>C1COCC1>[CH2:9]([O:13][CH2:14][CH2:15][O:16][CH2:17][CH2:18][OH:19])[CH3:10]

Komponenten

5

Edukt 3

HCID 7501Styrene2×HCID 8923Triethylene glycol monobutyl ether2×HCID 24533Sodium amide

Produkt 1

HCID 8146Diethylene Glycol Monoethyl EtherAusbeute 50 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

Polymerization of styrene with the system NaNH2 and triethylene glycol monobutyl ether. Polymerization is allowed to proceed from 8.32 g (8·10-22 mole) of styrene in in 30 cc THF in the presence of 0.98 g (25·10-3 mole) of sodium amide and 1.71 g (8.3·10-3 mole) of triethylene glycol monobutyl ether. The reaction mixture which is obtained prior to the addition of the monomer has a yellow color which is more pronounced than that obtained with diethylene glycol monoethyl ether, contrary to the results which have been obtained with glycol monomethyl ether. At the end of four hours, a polymer is obtained in 50% yield, with Mn=8500.

Aufarbeitung

  1. customPolymerization
  2. customThe reaction mixture which is obtained
  3. additionto the addition of the monomer

Quellen und Nachweise

ORD-Eintrag
ord-ee1cd658a5b4488b9bdfd053b4ca7193
Quelldatensatz
uspto-grants-1981_03
Patentnummer
US04254247

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