| Language: | English |
|---|---|
| Type: | Article |
| Authors: | Katsuya Funayama, Toyoko Imae, Keigo Aoi, Kaname Tsutsumiuchi, Masahiko Okada, Hideki Seto and Michihiro Nagao |
| Journal: | Journal of the Physical Society of Japan |
| ISSN: | 0031-9015 |
| Volume: | 70 |
| Number: | Supplement A |
| Year: | 2001 |
| Actual year: | 2001 |
| Pages: | 326-328 |
| Abstract: | Overall static and dynamic characterizations of the dendrimer are expected to be modified through changing the internal and terminal chemical structures of the dendrimer. In the present study, the aqueous solutions of the fifth generation glycopeptide-type sugar ball at 1 and 10 wt% dendrimer concentrations, which show different, small-angle neutron scattering profiles, were measured by neutron spin echo. The diffusion behaviors were found to depend on dendrimer concentration, as well as for the solutions of fifth generation poly(amido amine) dendrimer with hydroxyl terminals. A slow relaxation mode was obtained at high concentration but the fast and slow modes were at low concentration. It was concluded that the slow mode is translational diffusion of dendrimer and the fast one due to segment motion in dendrimer. Since the fast mode was found for both dendrimer solutions, that, will be specific dynamics originated by amido-amine unit in dendrimer, which is common in both dendrimers. |
Katsuya Funayama, Toyoko Imae, Keigo Aoi, Kaname Tsutsumiuchi, Masahiko Okada, Hideki Seto and Michihiro Nagao, Journal of the Physical Society of Japan, 70, 326-328 (2001)