例句
-
R is tetramethylene, pentamethylene, or hexamethylene.
R为四甲撑 、 五甲撑或六甲撑.
-
A series of Copolyimides, derived from hexamethylene diamine ( HMD ) , 4,4� � - diaminodiphenyl ether ( ODA ) and 3,3� �, 4,4� � - oxydiphthalic dianhydride ( ODPA ), were prepared.
采用二苯醚3,3, ′4, 4′-四 甲酸 二酐与己二胺和4, 4′-二氨基二苯醚为 单体 合成聚酰胺酸, 经热酰亚胺化制备共聚型聚酰亚胺.
-
Dialysis and ethylene diamine tetraacetic acid ( EDTA ) were used for improving electrospinnability of the PVA.
经透析或加入乙二胺四乙酸 ( EDTA ) 后,可纺性有了明显改善.
-
HEDTA ( N - hydroxyethyl ethylene diamine triacetic acid )
N - 羟乙基乙二胺三醋酸 ( 有机螯合剂 )
-
Cu furaldehyde - diamine Schiff base complex was synthesized with the yield of 63.
合成了一种席夫碱金属络合物——呋喃甲醛乙二胺铜络合物,收率为63.