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Methanol → p-Tert-butoxystyrene p-methylstyrene

HRID 430907
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 430907
N(C(C)(CC)C([O-])=O)=NC(C)(CC)C([O-])=O.[C:17]([O:21][C:22]1[CH:29]=[CH:28][C:25]([CH:26]=[CH2:27])=[CH:24][CH:23]=1)([CH3:20])([CH3:19])[CH3:18].[CH3:30][C:31]1[CH:38]=[CH:37][C:34]([CH:35]=[CH2:36])=[CH:33][CH:32]=1.CO>O1CCOCC1>[C:17]([O:21][C:22]1[CH:23]=[CH:24][C:25]([CH:26]=[CH2:27])=[CH:28][CH:29]=1)([CH3:20])([CH3:18])[CH3:19].[CH3:30][C:31]1[CH:38]=[CH:37][C:34]([CH:35]=[CH2:36])=[CH:33][CH:32]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 887MethanolHCID 121611-Ethenyl-4-methylbenzeneHCID 5775311-(Tert-butoxy)-4-ethenylbenzeneHCID 219175032,2'-Azobis(methyl 2-methylpropanate)

Produkt 1

HCID 67612459p-Tert-butoxystyrene p-methylstyrene

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 31275
1,4-Dioxane
Lösungsmittel

Versuchsvorschrift

2,2′-Azobis(methyl 2-methylpropionate) was added to a mixture of 100 g (0.567 mole) of p-tert-butoxystyrene and 3.54 g (0.03 mole) of p-methylstyrene in 1,4-dioxane, followed by conducting a polymerization reaction at 80° C. for 6 hours under nitrogen gas streams. After cooling, the reaction solution was poured into 5000 ml of aqueous methanol solution to precipitate out. The precipitated polymer was filtered, washed with methanol and dried under reduced pressure to give 92.3 g of poly(p-tert-butoxystyrene/p-methylstyrene) as white powders. A ratio of p-tert-butoxystyrene unit and p-methylstyrene unit was about 95:5 by 1HNMR. Mw was about 20000 and Mw/Mn was 1.90 by GPC measurement using polystyrene as standard.

Aufarbeitung

  1. customa polymerization reaction at 80° C. for 6 hours under nitrogen gas streams
  2. temperatureAfter cooling
  3. customto precipitate out
  4. filtrationThe precipitated polymer was filtered
  5. washwashed with methanol
  6. customdried under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-ecdc3ce1f081466aaa85836965880355
Quelldatensatz
uspto-grants-2003_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06656660B1

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