Back to Search
Start Over
Gaussian effective interaction between flexible dendrimers of fourth generation: A theoretical and experimental study.
- Source :
-
Journal of Chemical Physics . 7/22/2002, Vol. 117 Issue 4, p1869. 9p. 1 Diagram, 2 Charts, 5 Graphs. - Publication Year :
- 2002
-
Abstract
- We propose a theory for the effective interaction between soft dendritic molecules that is based on the shape of the monomer density profile of the macromolecules at infinite dilutions. By applying Flory-type arguments and making use of the experimentally measured density profiles, we derive a Gaussian effective interaction whose parameters are determined by the size and monomer number of the dendrimers that are derived from small-angle neutron scattering (SANS) measurements. By applying this theory to concentrated dendrimer solutions we calculate theoretical structure factors and compare them with experimental ones, derived from a detailed analysis of SANS-data. We find very good agreement between theory and experiment below the overlap concentration, where drastic shape deformations of the dendrimers are absent. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DENDRIMERS
*MONOMERS
*GAUSSIAN processes
*SCATTERING (Physics)
Subjects
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 117
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 6959696
- Full Text :
- https://doi.org/10.1063/1.1486209