|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
Dendrons and Dendritic Terpolymers: Synthesis, 3 Characterization and Self-Assembly Comparisonстатья
- Авторы: Rangou Sofia, Moschovas Dimitrios, Moutsios Ioannis, Manesi Gkreti-Maria, Tsitoni Konstantina, Bovsunovskaya Polina V., Ivanov Dimitri A., Thomas Edwin L., Avgeropoulos Apostolos
- Журнал: Molecules
- Год издания: 2020
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- DOI: 10.3390/molecules25246030
- Аннотация: It is the very first time that a thorough study of the synthetic procedures, molecular andthermal characterization, followed by structure/properties relationship for symmetric and non-symmetric second generation (2-G) dendritic terpolymers is reported. Actually, the synthesisof the non-symmetric materials is reported for the first time in the literature. Anionicpolymerization enables the synthesis of well-defined polymers that, despite the architecturecomplexity, absolute control over the average molecular weight, as well as block composition, isachieved. The dendritic type macromolecular architecture affects the microphase separation, since different morphologies are obtained, which do not exhibit long range order and various defects or dislocations are evident attributed to the increased number of junction points of the final material despite the satisfactory thermal annealing at temperatures above the highest glass transitiontemperature of all blocks. For comparison reasons the initial dendrons (miktoarm star terpolymer precursors) which are connected to each other in order to synthesize the final dendritic terpolymers are characterized in solution and in bulk and their self-assembly is also studied. A major conclusion is that specific structures are adopted which depend on the type of the core connection between the ligand and the active sites of the dendrons.
- Добавил в систему: Иванов Дмитрий Анатольевич