[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH:9]([C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][N:12]=1)=[CH2:10]>O>[CH:9]([C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][N:12]=1)=[CH2:10].[CH:2]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH:9]=[CH2:10])=[CH2:1].[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1Styrene (73 grams), 2-vinylpyridine (24 grams), dinvinylbenzene (4 grams), Natrasol 250H (0.3 grams) and 600 ml of water were reacted as in Example 1. There were obtained 90 grams of white solids containing 3.4% nitrogen.
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