Intra- and intermolecular organization of sulfopolystyrene ionomers in solutions: Neutron scattering study
Processes of self-organization of sulfonated PS with a low content of ionogenic groups in the acidic form (SO 3 H) in chloroform have been studied by cold neutron scattering. An analysis of spatial correlations of macromolecules shows that two factors (electrostatic interactions and hydrogen bonds b...
Saved in:
Published in | Polymer Science. Series A Vol. 51; no. 4; pp. 372 - 380 |
---|---|
Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
SP MAIK Nauka/Interperiodica
01.04.2009
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Processes of self-organization of sulfonated PS with a low content of ionogenic groups in the acidic form (SO
3
H) in chloroform have been studied by cold neutron scattering. An analysis of spatial correlations of macromolecules shows that two factors (electrostatic interactions and hydrogen bonds between SO
3
H groups) are responsible for the conformational transformation of ionomer chains to hollow structures of the type of spherical micelles with dense packing of SO
3
H groups in the shell stabilized by hydrogen bonds. At a moderate content of SO
3
H groups (2.6 mol %), micellar particles of ionomers form chain clusters composed of three to five particles. In solutions of ionomers with a higher content of ionogenic groups (∼4.5 mol %), highly ordered three-dimensional structures appear in the form of fragments of a simple cubic lattice with a constant equal to the diameter of micelles. |
---|---|
Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0965-545X 1555-6107 |
DOI: | 10.1134/S0965545X09040026 |