| 摘要 |
Resins and carbon-carbon composites are formed from di(alken-1-yl) borinic acids and borinates, either as monomers or as nonpolymerizing additives in a monomer mixture, with the effect of sharply increasing the oxidative stability of the cured product. The compounds have the formula <IMAGE> in which R1, R2, R3, R4 and R5 are H, C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, C3-C7 cycloalkyl, C5-C7 cycloalkenyl, aryl, (C1-C6 alkyl)-substituted aryl, (C2-C6 alkenyl)-substituted aryl, or (C2-C6 alkynyl)-substituted aryl, at least one of R1, R2, R3, R4 and R5 being other than H.
|
