| 摘要 |
The invention relates to a copolymer comprising polyamide blocks PA alternated with polyether blocks PE, said PA blocks being formed by homopolyamide blocks PA X.Y obtained by polycondensation of: a linear aliphatic diamine having X carbon atoms, and a carboxylic diacid having Y carbon atoms. Said copolymer is characterised in that the crystallinity of block PA is greater than the crystallinity of a PA block of the same size and/or the PA/PE phase separation is greater than than that of a PA12/PTMG copolymer with PA12 blocks of the same size as the PA X.Y blocks and PTMG of the same size as the PE blocks. |
