歧化松香胺席夫碱铜配合物催化漆酚氧化聚合的研究

Catalytic Oxypolymerization of Urushiol with Cu^(2+) Schiff Base Complex of Disproportionated Rosin Amine as Catalyst

研究了歧化松香胺席夫碱-铜配合物的合成及其对漆酚氧化聚合反应的催化性能。用歧化松香胺和水杨醛反应,生成席夫碱,再与醋酸铜反应,制备席夫碱-铜配合物。讨论了该配合物作为催化剂,催化漆酚氧化聚合反应时,催化剂浓度、时间、底物浓度以及温度对漆酚氧化聚合反应的影响。结果表明,氧化聚合反应的理想条件是以乙醇为溶剂,加入3%歧化松香胺席夫碱-铜配合物催化剂,漆酚浓度为0.068 8 g/mL,在30℃下反应36 h后, 漆酚聚合物的沉淀得率为51.3%。

This paper synthesizes the Cu~ 2+ schiff base complex of disproportionated rosin amine,and catalyzes urushiol oxypolymerization to polymer .The rosin amine reacts with the salicylaldehyde to product the schiff alkali, then the schiff alkali reacts with cupric acetate to synthesize the schiff alkali-copper complex. The result shows that catalyst concentration, reaction time, urushiol concentration and temperatures affect the polymer yield in oxypolymerization of urushiol system. Rational reaction condition is that ratio of the Cu~ 2+ schiff base complex of disproportionated rosin amine is 3%, urushiol concentration is 68.8g/L ,the system of reaction reacts 36h at 30℃ in alcohol dissolvent. The yield of deposition of polymer is 51.3% in rational reaction condition.