Butanedioic acid polyisobutenyl derivs . reaction products with tetraethylenepentamine zinc salts ; Butanedioic acid polyisobutenyl derivs .

丁二酸的聚异丁烯基衍生物与 四聚 乙二胺的反应产物的锌盐；

For chemical co-precipitation method tetraethylenepentamine was used as precipitant for the first time to synthesize pure phase YAG powders .

对于化学共沉淀法， 首次 采用 四 乙烯 五 胺作为沉淀剂合成出纯相的YAG粉体。