Hydrodynamic, conformational, and electrooptical properties of cylindrical dendrimers with dendron ionic addition in solutions

• Published in: Polymer science. Series A, Chemistry, physics Chemistry, physics, 2006-05, Vol.48 (5), p.520-526
• Main Authors: Tsvetkov, N. V., Andreeva, L. N., Belyaeva, E. V., Bushin, S. V., Ivanova, V. O., Kudryavtseva, T. M., Mukhina, I. V., Girbasova, N. V., Egorova, G. G., Bilibin, A. Yu
• Format: Article
• Language: English
• Subjects: Backbone; Dendrimers; Electrooptical; Fluid dynamics; Fluid flow; Hydrodynamics; Rigidity; Solvents
• ISSN: 0965-545X; 1555-6107
• DOI: 10.1134/S0965545X06050099

Cylindrical dendrimers of first, second, and third generations with side dendrons based on L-aspartic acid which are attached to poly(styrenesulfonic acid) chains via ionic bonds are studied by molecular hydrodynamic, optical, and electrooptical measurements. Macromolecules of the said dendrimers demonstrate significant kinetic rigidity in external electric and hydrodynamic fields simultaneously with moderate equilibrium chain rigidity. The comparative analysis of the experimental data on various cylindrical dendrimers with the polyvinyl backbone and L-aspartic acid-based dendrons is performed. It has been shown that, in solvents not disturbing intramolecular hydrogen bonds between side dendrons, the conformational and dynamic properties of various cylindrical dendrimers are similar. The molecular characteristics of cylindrical dendrimers in non-dissociating solvents are insignificantly affected by the mode of dendron attachment to the backbone (covalent or ionic binding).