| Автор | Matsumoto, Kozo |
| Автор | Hasegawa, Hirohiko |
| Автор | Matsuoka, Hideki |
| Дата выпуска | 2006-09-30 |
| dc.description | The detailed structure and unique characteristics of a sodium poly(4-styrenesulfonate)-grafted nanoparticle, CCL-SBS<sub>113</sub>-b-SSNa<sub>208</sub>, were investigated, where CCL, SBS, and SSNa represent a core-cross-linked micelle, 4-(1-methylsilacyclobutyl)styrene, and sodium 4-styrenesulfonate, respectively. The particle nanostructure was analyzed by small-angle neutron scattering (SANS), dynamic light scattering (DLS), and atomic force microscopy. SANS data suggested that the particle had a core–corona structure with a 14-nm core radius (R<sub>c</sub>) and 2-nm radius of gyration (R<sub>g</sub>) corona-forming chain in water. DLS analysis revealed that the hydrodynamic radius (R<sub>h</sub>) of particle was 100 nm in water, which is much larger than the whole particle size evaluated by SANS, but the R<sub>h</sub> value gradually decreased with addition of NaCl and reached a constant value of 61 nm at an NaCl concentration above 0.2 M. Conductometric titration of the acidic form sample with NaOH<sub>aq</sub> suggested that the CCL-micelle had exactly the same content of sulfonate groups as the precursor block copolymer. The polySSNa-grafting particle showed high solution stability toward salt addition, which may be due to the electrostatic stabilization effect in addition to steric stabilization by the grafting polymer chains. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | © 2006 NIMS and Elsevier Ltd |
| Название | Characterization of sodium poly(4-styrenesulfonate)-grafted polymer fine particles synthesized by core-cross-linking of block copolymer micelles |
| Тип | paper |
| DOI | 10.1016/j.stam.2006.03.012 |
| Electronic ISSN | 1878-5514 |
| Print ISSN | 1468-6996 |
| Журнал | Science and Technology of Advanced Materials |
| Том | 7 |
| Первая страница | 566 |
| Последняя страница | 571 |
| Аффилиация | Matsumoto, Kozo; |
| Аффилиация | Hasegawa, Hirohiko; Department of Polymer Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan |
| Аффилиация | Matsuoka, Hideki; Department of Polymer Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan |
| Выпуск | 6 |
