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Biomaterials must meet special medical prerequisites like biocompatibility and resistance to degradation and fracture, especially under cyclic loading. Promising candidates are poly(aliphatic/aromatic-ester) (PED) multiblock copolymers, which belong to the class of thermoplastic elastomers (TPEs), characterized by a physical network of semi-crystalline hard segments. Here we focus on the dynamic creep...
The fatigue behaviour of poly(aliphatic/aromatic-ester) (PED) multiblock copolymers has been evaluated using the hysteresis loop method. Stepwise increasing strain test (SIST) was performed at a frequency of 1 Hz. The strain levels were varied with increasing extension steps: 3, 5, 10, 15, 20, 25 and 30% of the initial strain, while minimum stress has been set at a constant value of 0.1 MPa. It has...
The ‘dynamic creep’ behaviour of poly(aliphatic/aromatic-ester) (PED) multiblock copolymers has been evaluated by the hysteresis measurements method. The effect of the hard/soft segments concentration on the microphase separation in PED copolymers was determined by means of differential scanning calorimetry. The ‘dynamic creep’ of PED copolymers has been compared with poly(ether–ester) and segmented...
Fatigue properties of poly(aliphatic/aromatic-ester) (PED) multiblock copolymers were evaluated based on the hysteresis measurement method. This method allows the digitalization of the hysteresis loop and beside the determination of stress and strain-related parameters, stored energy, lost energy, damping and dynamic creep behaviour can be determined. The correlation between hard/soft segment concentration...
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