抗氧剂P-EPQ的合成

两步法合成抗氧剂四-(2,4-二叔丁基苯基)-4,4′-联苯基双亚磷酸酯。红外表征产品,考察了催化剂用量、反应温度、反应时间、解络时间、物料配比对产率的影响。反应温度为80℃,物料配比按联苯、AlCl3、PCl3的物质的量比1∶2.2∶8,反应7h后,按P2O5与AlCl3物质的量比1.1∶1加入解络剂P2O5,解络1h的产率可达57.2%。

Study of the Influence of the Electrolysis Parameters on Mn-Zn, Mn-Cu and Mn-Cu-Zn Alloys Coatings from Electrolytes Containing Complexing Ligands

The process of obtaining of high quality Mn-Zn, Mn-Cu and Mn-Cu-Zn alloy coatings from complexing ligands--citrate, EDTA （ethylene diaminetetra acetic acid） and nitrilotriacetic acid solutions was studied. Factors affecting stability of solutions containing ligand or ligands and influence of electrolysis parameters： electrolyte composition, pH, cathodic current density on chemical composition of the obtained coatings, on their current efficiency, morphology and structure were investigated.