Azobisisobutyronitrile → 5-Phenyl-2,4-pentadienoic acid
Reaktionsgleichung
C1(=O)CCCCC1.N(C(C)(C)C#N)=NC(C)(C)C#N.[CH2:20]=[CH:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.[C:28]([OH:32])(=[O:31])[CH:29]=[CH2:30]>>[CH:20]([CH:30]=[CH:29][C:28]([OH:32])=[O:31])=[CH:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1Komponenten
5
Versuchsvorschrift
432 g of cyclohexanone and 3 g of azobisisobutyronitrile were poured into a five-necked reaction vessel having a capacity of one litter. Then, while introducing nitrogen gas into the reaction vessel, the resultant mixture was heated to 80° C. Then, a mixed liquid constituted by 98.9 g of styrene and 9.1 g of acrylic acid was added drop-wise to the above mixture taking two hours. 30 minutes after finishing of the dropping of the mixed liquid, 3 g of azoisobutyronitrile was added to the resultant mixture and the mixture thus obtained was heated for 5 hours to obtain a styrene-acrylic acid copolymer. The weight average molecular weight of the styrene-acrylic acid copolymer thus obtained was 6900.