The diisoamyl glutarate in catalysis of silicotungsticacid was preparated by esterification of isoamyl alcohol and glutaric anhydride seperated from dicarboxylic acid.

用硅钨杂多酸为催化剂,以从二羧酸中分离出的戊二酸酐和异戊醇为原料合成了戊二酸二异戊酯。

Polynionic celluloses were preparated by alkalify and etherify of refining cotton.The degree of replacement of the polynionic cellulosesis was high.The radicals of replacement were distributed evenly.

采用精制棉经过碱化、醚化得到高取代度且取代基均匀分布的聚阴离子纤维素产品。