A reactive light stabilizer was synthesized through a one-step reaction using tetramethylpiperidol(A)and methyl 4-pentenoate(B)as raw materials,petroleum ether(C)as a solvent,tetraisopropyl titanate(D)as a catalyst,and p-hydroxyanisole(E)as an inhibitor.Then this paper studied the effects of temperature,solvent,time,catalyst,materialratio,and inhibitor dosage on the product yield.The results showed that under the optimized reaction conditions as follows:n(A)∶n(B)was 1∶1.2,the amount of catalyst tetraisopropyl titanate(D)was 1.0％of the mass of raw material(A),the amount of petroleum ether(C)is 6.8 times the mass of raw material(A),the polymerization inhibitor p-hydroxyanisole(E)was 0.4％of the mass of raw material(A),reaction time 12 hours,and reaction temperature 120 ℃,the yield of the product willreach 80.68％.
NETL
NSTL
万方数据
