| 摘要 |
Novel polycationic block copolymers useful as antistatic agents in detergent formulations and as flocculating agents are obtained by first forming a block of units by reacting a monomer of the formula II <IMAGE> wherein each of R5, R6, R7 and R8 may be the same or different and is selected from the group consisting of C1-3 alkyl, C1-3 hydroxy alkyl and polyoxyalkylene, m is an integer from 0 to 34 and r and s are the same or different and are integers from 1 to 6, with a molar excess of a dihalide of the formula Hal-L-Hal wherein Hal represents a halogen atom and L is selected from -CH2CH2-O-CH2CH2-, -CH2CH2-O-CH2CH2-O-CH2-, -(CH2)t- AND -CH2CHOHCH2- where t is an integer from 2 to 6 and thereafter reacting the product so formed with a compound of the formula III <IMAGE> wherein R1, R2, R3 and R4 are each individually selected from the group consisting of C1-3 alkyl, C1-3 hydroxyalkyl and polyoxyalkylne and p, and q are each individually integers of form 1 to 6 and, if necessary, in order to ensure a total molar ratio of compounds of Formula II and III to those of the formula Hal-L-Hal of 1:1 reacting the product with further compound of the formula Hal-L-Hal.
|
