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Neutron Scattering Studies of Structure and Self‐Assembly of Star‐Shaped Polymers with Fullerene Centres in Solutions
Author(s) -
Lebedev Vasily,
Vinogradova Lyudmila,
Török Gyula
Publication year - 2010
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.201051027
Subject(s) - fullerene , polystyrene , polymer , materials science , neutron scattering , small angle neutron scattering , polymer chemistry , protonation , scattering , chemical engineering , chemical physics , chemistry , physics , composite material , organic chemistry , optics , ion , engineering
Protonated star‐shaped polystyrenes with single and double fullerene C 60 core and the hybrid stars with pairs of polar and non‐polar arms (tertbuthylmetacrylate, polystyrene) have been studied in deuterated toluene (20 °C) by small‐angle neutron scattering at low and moderate polymer concentrations ( c 1 ∼ 1 g/dl, c 2 ∼ 3–6 g/dl) to evaluate the peculiarities of fullerene centre action on polymers self‐assembly in solutions. As we found, the cores composed of two fullerenes, linked via Si(CH 3 ) 2 ‐bridge, induce stars' anisotropic interactions and association into chain‐like structures (correlation radius ∼400–600 nm). Meanwhile, the single‐core stars of polystyrene and hybrids organize globular clusters (size ∼ 10 3 nm) those geometry do not change significantly by polymer content variation.