Influence of the block sequence on the morphological behavior of ABC triblock copolymers |
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Authors: | H Hückstdt A Gpfert V Abetz |
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Affiliation: | Makromolekulare Chemie II, Universität Bayreuth, D-95440 Bayreuth, Germany |
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Abstract: | Two series of linear SBV and BSV triblock copolymers have been prepared where S is polystyrene, B is polybutadiene and V is poly(2-vinylpyridine). While the ratio between the weight fractions of S and B was kept constant, the weight fraction of V was varied within each series. Morphological characterization was carried out by transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS). While BSV triblock copolymers show lamellar morphologies independent of the V content, the SBV triblock copolymers show different core-shell morphologies and a lamellar morphology as a function of the V content. |
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Keywords: | Triblock copolymers Transmission electron microscopy Small angle X-ray scattering |
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