| 摘要 |
PURPOSE: A stereo hindrance amine as a stabilizer of a polymer is provided, which stabilizer can effectively protect organic materials from the damage of radioactive rays, lights or heats. CONSTITUTION: The stereo hindrance amine stabilizer is represented by formula(1), in which X1 is hydrogen, C1 to C22 alkyl, oxygen radical, -OH, -NO and -CH2CN, benzyl, allyl, C1 to C30 alkoxy, C5 to C12 cycloalkyloxy, C6 to C10 aryloxy, C7 to C20 arylalkyloxy, C3 to C10 alkenyl, C3 to C6 alkynyl, C1 to C10 acyl, halogen, or unsubstituted or C1 to C4 alkyl substituted phenyl radical; X2 is hydrogen, (CH2-CH2-C(O)-O-X5) radical, (CH2-C(CH3)H- C(O)-O-X5) radical, or C1 to C22 alkyl; X3 and X4 are individually hydrogen, unsubstituted or C1 to C4 alkyl substituted phenyl radical, or C1 to C22 alkyl, wherein at least one of X3 and X4 is branched C4 to C22 alkyl; and X5 is C1 to C22 alkyl.
|
