Structural Estimation and Dynamics of Polymer-grafted Particle at Soft Interfaces
| Project/Area Number |
19750099
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Polymer chemistry
|
|---|
| Research Institution | Kyushu Institute of Technology |
|---|
Principal Investigator |
MOURI Emiko Kyushu Institute of Technology, 大学院・工学研究院, 助教 (60380721)
|
|---|
| Project Period (FY) |
2007 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥5,000,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥600,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥2,400,000 (Direct Cost: ¥2,400,000)
|
|---|
| Keywords | 高分子グラフト微粒子 / 気水界面 / 油水界面 / 液液界面 / 粒子膜 / π-A等温線 / 高分子修飾微粒子 / グラフト重合 / 単粒子膜 / 粒子間距離 / シリカ微粒子 / 高分子ラテックス |
|---|
| Research Abstract |
We have studied polymer-grafted submicron particle monolayer system at the air/water interface, and we have found that methacrylate polymers grafted from particle are fairly extended at the air/water interface. Here, we present the behaviors of polymer-grafted polystyrene latex in particle layer formation at the air/water and oil/water interfaces by surface pressure (π)-occupied area (A) isotherms. Surface pressure, π, of poly(methyl methacrylate)-grafted polystyrene latex (PSL-PMMA) layer and poly(n-butyl methacrylate)-grafted polystyrene latex (PSL-PnBMA) at decane/water interface began to increase surface pressure at larger occupied area compared with those at the air/water interface by 20%. Furthermore, we estimated elastic modulus of particle layer from π-A isotherms at each interface. Elastic modulus of particle layer at decane/water interface showed lower values compared with those at the air/water interface. Polymer chain move more easily in the octane phase than in the air, which contributes the lower elastic modulas in particle monolayer at octane/water system. PSL-PMMA particle monolayer showed higher values of elastic modulas compared with those of PSL-PnBMA at either air/water and decane/water interfaces, which suggested PSL-PMMA formed harder particle monolayer than PSL-PnBMA.
|
Report
(3 results)
Research Products
(51 results)
