Реакция #518089

Уравнение реакции

methanol

2,2′-Azobis(methyl 2-methylpropionate)

p-tert-butoxystyrene

p-methylstyrene

→

p-tert-butoxystyrene p-methylstyrene

Растворители

1,4-dioxane

Условия реакции

Обработка

1. 1
   Другоеa polymerization reaction at 80° C. for 6 hours under nitrogen gas streams
2. 2
   ТемператураAfter cooling
3. 3
   Другоеto precipitate out
4. 4
   ФильтрацияThe precipitated polymer was filtered
5. 5
   Промывкаwashed with methanol
6. 6
   Другоеdried under reduced pressure

Методика

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.

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