| 摘要 |
<p>In the present invention there are disclosed polyamide material based on lactams consisting of block copolymers being composed of chemically different segments containing each as monomeric units at least {omega}-amino acid and/or of mixtures of those copolymers with homopolymers and/or statistic copolymers containing identical monomeric units with block copolymers, that can be prepared by anionic polymerisation of at least one lactam of {omega}-amino acid with more than three atoms in the cycle being initiated by polyamide initiators, whose copolymer molecule consists of monomeric units of at least {omega}-amino acid that contains more than 6 carbon atoms in the main chain and isn't substituted on nitrogen atom, further of {omega}-amino acid units having more than two carbon atoms in the main chain that are substituted on the nitrogen atom with the group RCO, wherein R represents alkyl, cycloalkyl, aryl, aralkyl or a polyamide chain, and optionally of {omega}-alkylamino acid units or {omega}-arylamino acid units containing more than 6 carbon atoms in the main chain, whereby the polyamide initiators initiate anionic polymerisation and are built in the resulting copolymer.</p> |
