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Structure and dynamics of dendritic macromolecules
Author(s) -
Ozerin Alexander N.,
Muzafarov Aziz M.,
Gordeliy Valentin I.,
Kuklin Alexander I.,
Ignat'eva Galina M.,
Krykin Mikhail A.,
Ozerina Lyudmila A.,
Shumilkitalia A.,
Islamov Akhmed Kh.,
Sharipov Eugene Yu.,
Mukhamedzyanov Ruslan I.
Publication year - 2003
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200390118
Subject(s) - dendrimer , macromolecule , organosilicon , polymer , chemical physics , relaxation (psychology) , neutron scattering , diffusion , materials science , scattering , chemistry , polymer chemistry , thermodynamics , physics , optics , composite material , psychology , social psychology , biochemistry
The highly branched regular organosilicon polymer structures (dendrimers) were examined. A number of experimental techniques were used to study the structure and dynamics of dendritic macromolecules in a bulk state as well as in diluted solutions. The reliable quantitative structural and dynamical characteristics, which were obtained within a framework of a complex investigation, arranged a background to resolve several of the contradictions in accounting for the results coming from the various experimental methods and numerical calculations. The explanations were found for: (a) why dendrimers look as penetrable and impenetrable with the solvent at the same time; (b) why dendrimers reveal typical for the linear polymers segmental relaxation spectra and possess a translation diffusion of the whole macromolecule in addition. The small‐angle neutron scattering experiments on the dendrimers with the specially labeled terminal groups showed that the terminal groups are concentrated near the periphery of the dendrimer structure.