[CH3:1][NH:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][N:9]([CH3:11])[CH3:10].[C:12]1([C:14](=[CH:16][CH:17]=[CH:18][CH:19]=1)[OH:15])[OH:13].O=O>CO.O.O.O.O.O.S([O-])([O-])(=O)=O.[Cu+2]>[C:14]1(=[O:15])[CH:16]=[CH:17][CH:18]=[CH:19][C:12]1=[O:13].[CH3:1][NH:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][N:9]([CH3:11])[CH3:10]About 37.93 g (0.24 mol) trimethyl-hexamethylene-diamine and about 0.6 g (0.0024 mol) copper sulfate pentahydrate were dissolved in about 400 mL of methanol. About 26.4 g (0.24 mol) of catechol (chemical name 1,2-dihydroxybenzene) acting as both the quinone precursor and catalyst was added to the reactant mixture. A gentle stream of oxygen at a flow rate of about 50 cc/min was then passed through the reaction mixture for about three hours, while maintaining the reaction temperature around 20°-25 ° C. At the end of three hours the oxygen supply was cut off and the reaction mixture was concentrated under vacuum using a rotary evaporator. The o-benzoquinone-trimethyl-hexamethylene-diamine polymer was precipitated in excess water, washed extensively and dried under vacuum for about 6 hours at a temperature of about 30° C.
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