Structure/Properties Relationship of Anionically Synthesized Diblock Copolymers “Grafted to” Chemically Modified Graphene

Авторы: Katsigiannopoulos Dimitrios, Grana Eftychia, Tsitoni Konstantina, Moutsios Ioannis, Manesi Gkreti-Maria, Nikitina Evgeniia A., Chalmpes Nikolaos, Moschovas Dimitrios, Gournis Dimitrios, Ivanov Dimitri A., Avgeropoulos Apostolos
Журнал: Polymers
Том: 13
Год издания: 2021
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
DOI: 10.3390/polym13142308
Аннотация: A novel approach to obtaining nanocomposite materials using anionic sequential polymerization and post-synthetic esterification reactions with chemically modified graphene sheets (CMGs)is reported. The anionically synthesized diblock copolymer precursors of the PS-b-PI-OH type weregrafted to the chemically modified –COOH groups of the CMGs, giving rise to the final compositematerials, namely polystyrene-b-poly(isoprene)-g-CMGs, which exhibited enhanced physicochemicalproperties. The successful synthesis was determined through multiple molecular characterizationtechniques together with thermogravimetric analysis for the verification of increased thermal stability,and the structure/properties relationship was justified through transmission electron microscopy.Furthermore, the arrangement of CMGs utilizing lamellar and cylindrical morphologies was studiedin order to determine the effect of the loaded CMGs in the adopted topologies.
Добавил в систему: Иванов Дмитрий Анатольевич

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