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Synthesis and morphology of polycaprolactone–block-polyimide–block-polycaprolactone triblock copolymers for film separation membranes

Abstract

Triblock copolymers with the central polyimide block and peripheral polycaprolactone blocks were synthesized by controlled ring-opening anionic coordination polymerization of ε-caprolactone on polyimide macroinitiators with terminal hydroxy groups. The chemical structure of the products was determined by spectroscopic methods, and the molecular-mass characteristics of the triblock copolymers and their separate blocks were determined by size-exclusion chromatography. Examination of the phase morphology of strong self-supporting films formed from the copolymer solutions revealed microphase segregation on the nanometer level in the films.

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Correspondence to A. V. Yakimanskii.

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Original Russian Text © T.K. Meleshko, A.V. Kashina, N.N. Saprykina, S.V. Kostyuk, I.V. Vasilenko, P.A. Nikishev, A.V. Yakimanskii, 2017, published in Zhurnal Prikladnoi Khimii, 2017, Vol. 90, No. 4, pp. 507−517.

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Meleshko, T.K., Kashina, A.V., Saprykina, N.N. et al. Synthesis and morphology of polycaprolactone–block-polyimide–block-polycaprolactone triblock copolymers for film separation membranes. Russ J Appl Chem 90, 602–612 (2017). https://doi.org/10.1134/S1070427217040176

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  • DOI: https://doi.org/10.1134/S1070427217040176