| Project/Area Number |
12450318
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
反応・分離工学
|
|---|
| Research Institution | OKAYAMA UNIVERSITY |
|---|
Principal Investigator |
YOSHIZAWA Hidekazu Department of Environmental Chemistry and Materials, Okayama University, Associate Professor, 環境理工学部, 助教授 (20244262)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KITAMURA Yoshiro Department of Environmental Chemistry and Materials, Okayama University, Professor, 環境理工学部, 教授 (90032945)
|
|---|
| Project Period (FY) |
2000 – 2001
|
| Project Status |
Completed (Fiscal Year 2001)
|
| Budget Amount *help |
¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2001: ¥4,100,000 (Direct Cost: ¥4,100,000)
|
|---|
| Keywords | Polymer Emulsifier / Self-organization / Polymer Microsphere / Micelle / Polyaspartate / Colloid / Emulsion Polymerization / ζ-potential / ポリアスバラギン酸 / 表面張力 / 蛍光分光法 / 動的光散乱 |
|---|
| Research Abstract |
Water-soluble and biodegradable polyaspartate derivatives were synthesized. Colloidal properties of their aqueous solution such as micelle formation were studied by using surface tension measurement, fluorescence probe technique, dynamic light scattering and so on. As a result, it was clarifies that their substances associated to form both inter- and intra-molecular aggregates which diameter ranged from several nm to several tens nm.
Furthermore, we adopted the synthesized polyaspartate derivatives as a surfactant and emulsion polymerization of styrene was carried out. Spherical polystyrene microspheres were successfully prepared. From the evidence of surfactant-concentration dependency of microsphere diameter, it was found that emulsion polymerization proceeded following traditional Smith-Ewart mechanism. Dispersion property of polystyrene latex prepared in this study was discussed from the point of view of ζ-potential.
|
