TY  - JOUR
AU  - Kuklin, A. I.
AU  - Ozerin, A. N.
AU  - Islamov, A. Kh.
AU  - Muzafarov, A. M.
AU  - Gordeliy, V. I.
AU  - Rebrov, E.
AU  - Ignateva, G. M.
AU  - Ozerina, L. A.
AU  - Tatarinova, E. A.
AU  - Mukhametzianov, R. I.
AU  - Ozerina, L. A.
AU  - Sharipov, E. Yu.
TI  - The spacial structure of dendritic macromolecules
JO  - Journal of applied crystallography
VL  - 38
SN  - 0021-8898
CY  - Copenhagen
PB  - Munksgaard
M1  - PreJuSER-49348
SP  - 996 - 1003
PY  - 2005
N1  - Record converted from VDB: 12.11.2012
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000233271100017
DO  - DOI:10.1107/S0021889805032115
UR  - https://juser.fz-juelich.de/record/49348
ER  -