| A poly(ester-block-amide) multiblock copolymers containing an aliphatic ester: poly(butylene sebacate), which plays role of a soft block and polyamide PA12 as a hard or rigid block, were synthesized in some different compositions during three-step process. An investigation of their physical properties by such experimental techniques as DSC, DMTA, and DETA (dielectric spectroscopy) were performed to recognize of phase structure of these materials. There was find that this structure becomes more complex in samples with high soft phase contents (above 40 wt.%), which reflects mostly onto dielectric spectra of these materials. |
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