摘要
单聚合型受阻胺光稳定剂UV3853的合成是以油酸甲酯和2,2,6,6-四甲基-4-哌啶醇为原料,在催化剂钛酸四异丙酯的作用下,以正辛烷为溶剂进行酯交换而得。通过正交实验,取得了较佳的反应条件:n(C9H19NO):n(油酸甲酯)=1.15:1,反应时间为10 h,催化剂用量为油酸甲酯质量的6%。在此条件下合成的产品符合质量标准,产品的收率达95.2%。
The hindered amine light stabilizer UV3853 was synthesized with methyl oleate and 2,2,6,6-tetramethyl-4-piperidinol with titanium tetra-isopropoxide as catalyst,octane as solvent.The optimum reaction condition were found as follow：reaction time 10 h,mole ratio of 2,2,6,6-tetramethyl-4-piperidinol to methyl oleate 1.15 and titanium tetra-isopropoxide dosage 6% of the mass of methyl oleate.Under the optimum condition,the yield of UV3853 was up to 95.6%.The quality of UV3853 conforms standards.
出处
《浙江化工》
CAS
2013年第3期20-22,共3页
Zhejiang Chemical Industry
