Abstract
Using the methods of electron microscopy and low angle X-ray scattering a comparative analysis has been carried out on the structure and properties (glass transition temperature, mechanical properties, sorption and diffusion of selective solvent in the poly(arylate dimethylsiloxane) polyblock copolymer in relation to the chemical structure of the chain and the selectivity of the solvent. It is shown that the main features of the polyblock copolymer are: the phase conversion process taking place over a wide range of block copolymer composition, the presence of several levels of segregation, and phase organization that is less regular than in two and three block copolymers.
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