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dc.contributor.authorNtetsikas, Konstantinos
dc.contributor.authorMoschovas, Dimitrios
dc.contributor.authorZapsas, Georgios
dc.contributor.authorMoutsios, Ioannis
dc.contributor.authorTsitoni, Konstantina
dc.contributor.authorManesi, Gkreti Maria
dc.contributor.authorNabiullin, Azat F.
dc.contributor.authorHadjichristidis, Nikos
dc.contributor.authorIvanov, Dimitri A.
dc.contributor.authorAvgeropoulos, Apostolos
dc.identifier.citationNtetsikas, K., Moschovas, D., Zapsas, G., Moutsios, I., Tsitoni, K., Manesi, G.-M., … Avgeropoulos, A. (2021). Synthesis, characterization and self-assembly of linear and miktoarm star copolymers of exclusively immiscible polydienes. Polymer Chemistry, 12(18), 2712–2721. doi:10.1039/d1py00258a
dc.description.abstractLinear and non-linear copolymers of the PB-b-PI sequence [PB: polybutadiene of high 1,4-microstructure (∼92%) and PI: polyisoprene of high 3,4-microstructure (∼55-60%)] and their corresponding miktoarm star copolymers of the PB(PI3,4)2 and PB(PI3,4)3 type were synthesized by combining anionic polymerization and selective chlorosilane chemistry. Molecular characteristics, thermal properties and structure/properties relationship are reported for the specific copolymers and especially the self-assembly is of major importance and interest due to the nature of the blocks. The identical electron densities between the two polydienes led to impossible morphological characterization through small angle X-ray scattering (SAXS) and only transmission electron microscopy results verify the adopted morphology for each copolymer, justifying the assumption that the segment-segment interaction parameter between the two polydienes of high 1,4-microstructure (∼92%) for the PB and ∼55-60% 3,4-microstructure for the PI is well above zero. The consistency of the bulk morphology results of this study compared with those of the extensively studied system of the PS(PI)n=1,2,3 type (PS: polystyrene), were unexpectedly coherent. High chain flexibility provided by the two polydiene segments, leads to promising properties unattainable from corresponding thermoplastic triblock copolymers of these polydienes with PS (PS-b-PI-b-PS, PS-b-PB-b-PS), especially for rheological studies.
dc.description.sponsorshipA. F. N. and A. A. acknowledge financial support from the Ministry of Science and Higher Education of the Russian Federation within State Contract 075-15-2019-1889. K. N., D. M., G. Z., I. M., K. T., G.-M. M. and A. A. would like to acknowledge the Network of Research Supporting Laboratories at the University of Ioannina for using the Electron Microscopy Facility and the Nuclear Magnetic Resonance Spectroscopy Center. K. N., G. Z. and N. H. would like to acknowledge the support of King Abdullah University of Science and Technology (KAUST).
dc.publisherRoyal Society of Chemistry (RSC)
dc.rightsThis article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
dc.titleSynthesis, characterization and self-assembly of linear and miktoarm star copolymers of exclusively immiscible polydienes
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentChemical Science Program
dc.identifier.journalPolymer Chemistry
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Materials Science Engineering, University of Ioannina, University Campus-Dourouti 45110 Ioannina Greece
dc.contributor.institutionFaculty of Chemistry, Lomonosov Moscow State University (MSU) GSP-1 1-3 Leninskiye Gory 119991 Moscow Russia
dc.contributor.institutionInstitute of Problems of Chemical Physics, Russian Academy of Sciences Chernogolovka 142432 Moscow
dc.contributor.institutionInstitut de Sciences des Matériaux de Mulhouse-IS2M, CNRS UMR7361 15 Jean Starcky Mulhouse 68057 France
kaust.personNtetsikas, Konstantinos
kaust.personZapsas, Georgios
kaust.personHadjichristidis, Nikos

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