| 摘要 |
<p>A process for preparing a nylon block copolymer which comprises bringing into reactive contact lactam monomer, basic lactam polymerization catalyst and an acyllactam functional material selected from the group consisting of those of the formulae: Z+O-@-R(@-Q)8]5 and Z+O-@-@-Q]b wherein, <CHEM> with Y = C3-C11 alkylene; a is an integer equal to 1, 2 or 3; b is an integer equal to 2 or more; R is a di- or poly-valent group selected from hyorocarbon groups and hydrocarbon groups containing ether linkages; and Z is a segment of (1) a polyether; (2) a polyester containing polyether segments; (3) a hydrocarbon or (4) a polysiloxane. Also covered are nylon block copolymers.</p> |
