Thus, this polymer catalyst is especially suited to the hydrogenation of the ethylenic double bonds which are linked to aromatic, cyano, carboxyl and estergroups.
The full name of the polyurethane is the poly - urethane, which is a general designation of the macromolecular compound containing repeated amino acid estergroups.
聚氨酯全称为聚氨基甲酸酯,是主链上含有重复氨基甲酸酯基团的大分子化合物的统称。
3
The scale inhibition and dispersion performance of acrylic acid-acrylic ester copolymer is increased greatly by addition of new groups and improvement of synthesis technology.