Correlation between Morphology and Mechanical Properties of Polystyrene-b-Polybutadiene-b-Poly(methyl methacrylate) in Dependency of the Polybutadiene's Block Microstructure.

TL;DRAbstract

In this work correlation between morphology and mechanical properties of different triblock terpolymers of polystyrene-b-polybutadiene-b-poly(methyl methacrylate), SBM, especially of those having lamellar morphology subtypes (e. g. well segregated lamellae or a transitional lamellar pattern) have been extensively investigated. Moreover, the influence of polybutadiene (B) isomers (which is mainly controlled by the solvent polarity) on the morphology and mechanical properties have been explored. Different polybutadiene isomers (from higher 1,2- to lower 1,2-B) were obtained by sequential anionic polymerization method. The morphological and mechanical investigations for different lamellar type SBMs showed that very well segregation of the lamellar domains for both 1,2- and 1,4- SBM were obtained at molar masses ranging from 80 to 170 kg/mol. Short lamellar domains were found for the molar masses ranging from 40 to 55 kg/mol. Mixed lamellae can be achieved in the polymers containing low mo

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