Journal Article

PreJuSER-49348

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The spacial structure of dendritic macromolecules

Kuklin, A. I. ; Ozerin, A. N. ; Islamov, A. K. ; Muzafarov, A. M. ; Gordeliy, V. I.FZJ* ; Rebrov, E. ; Ignateva, G. M. ; Ozerina, L. A. ; Tatarinova, E. A. ; Mukhametzianov, R. I.FZJ* ; Ozerina, L. A. ; Sharipov, E. Y.

2005
Munksgaard Copenhagen

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Please use a persistent id in citations: http://hdl.handle.net/2128/2653  doi:10.1107/S0021889805032115

Abstract: A low-resolution ab initio shape determination was performed from small-angle neutron and X-ray scattering (SANS and SAXS) curves from solutions of polycarbosilane dendrimers with the three-functional and the four-functional branching centre of the fourth, fifth, sixth, seventh and eighth generations. In all cases, anisometric dendrimer shapes were obtained. The overall shapes of the dendrimers with the three-and four-functional branching centres were oblate ellipsoids of revolution and triaxial ellipsoids, respectively. The restored bead models revealed a pronounced heterogeneity within the dendrimer structure. The density deficit was observed in the central part and close to the periphery of the dendrimers. The fraction of the overall volume of the dendrimers available for solvent penetration was about 0.2-0.3. These results may help in the design of new practical applications of dendrimer macromolecules.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Biologische Strukturforschung (IBI-2)

Research Program(s):

1. Neurowissenschaften (L01)

Appears in the scientific report 2005
Notes: 0

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