| 摘要 |
Biologically active copolymer comprises an octablock copolymer of formula (B-A-)2NCH2CH2N(-A-B) (I) in an oil and water emulsion where A = (C2H4O)a and B=(C3H6O)b; or A=(C3H6O)b and B=(C2H4O)a; the mean aggregate mol.wt. represented by polyoxypropylene is 5,000-7000; a = no. such that the polyoxyethylene portion is 10-40 wt.% of (I); and b = no. such that the polyoxypropylene portion is 60-90 wt.% of (I). |
