Reaktion #721223

Reaktionsgleichung

diisopropyl fumarate

cinnamic acid

methanol

→

diisopropyl fumarate cinnamic acid

Ausbeute 26.8%

Lösungsmittel

tetrahydrofuran

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigeafter repeating purging with nitrogen and release of the pressure
2. 2
   Sonstigesealed in the pressure-reduced state
3. 3
   SonstigeThis ampule was placed in a constant temperature bath at 50° C.
4. 4
   Sonstigepolymerization
5. 5
   SonstigeAfter the completion of polymerization reaction
6. 6
   Sonstigethe precipitate was vacuum-dried at 80° C. for 10 hours

Vorschrift

A glass ampule having a volume of 75 mL was charged with 50 g (0.25 mol) of diisopropyl fumarate, 15.9 g (0.107 mol) of cinnamic acid and 0.21 g (0.0012 mol) of tert-butyl peroxypivalate as a polymerization initiator and after repeating purging with nitrogen and release of the pressure, sealed in the pressure-reduced state. This ampule was placed in a constant temperature bath at 50° C. and held for 48 hours, thereby performing radical polymerization. After the completion of polymerization reaction, the polymerization product was taken out of the ampule and dissolved in 400 g of tetrahydrofuran. The resulting polymer solution was added dropwise, for precipitation, to 3 L of methanol, and the precipitate was vacuum-dried at 80° C. for 10 hours to obtain 10 g of a diisopropyl fumarate/cinnamic acid copolymer (yield: 15%).

Quelle