1,5-Dihydroxynaphthalene → Bisphenol A

反応式

[CH3:1][C:2]([C:11]1[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=1)([C:4]1[CH:9]=[CH:8][C:7]([OH:10])=[CH:6][CH:5]=1)[CH3:3].C1OC1CCl.OC1C2C(=C(O)C=CC=2)C=CC=1.N1CCCCC1.C1(C)C(C)=CC=CC=1>C(Cl)Cl>[OH:10][C:7]1[CH:6]=[CH:5][C:4]([C:2]([C:11]2[CH:12]=[CH:13][C:14]([OH:17])=[CH:15][CH:16]=2)([CH3:3])[CH3:1])=[CH:9][CH:8]=1

参加物

実験手順

This comparative example illustrates the Tg enhancement provided by a relatively bulky linking compound that has been referred to in several patents relating to ED paints. 72.7 Parts EPON 829 and 14.8 parts 1,5-dihydroxynaphthalene were combined neat and reacted overnight at 158° C., then diluted with 28.9 parts mixed xylenes. The resulting dark brown, viscous reaction product solution contained 72.5% solids and had an epoxy equivalent weight of 423 (perchloric acid-tetrabutyl ammonium iodide titration). 19.06 Parts of the reaction product solution were combined with 0.30 parts piperidine and 54.6 parts of xylene:methylene chloride solution, then analyzed using dynamic mechanical analysis. A measured Tg of 134° C. was obtained. This Tg value is 20° C. greater than that obtained when bisphenol A is substituted for such linking compound.