| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Outline of Final Research Achievements |
Rotaxane-linked shape-transformable polymer from star to linear structure by changing the interaction of crown ether with sec-ammonium to urethane moiety, was introduced. First, the rotaxane-linked star polymer based on the interaction between sec-ammonium and crown ether having a graft chain at the center of axle was designed. To ensure the synthesis of the well-defined rotaxane linked star polymer whose arm polymer chains had same length, a tri-functional initiator was designed. The ammonium moiety of the obtained 3-armed star polymer was then acetylated with acetic anhydride to release the wheel component having a graft chain from the axle by the elimination of the interaction between the crown ether and the ammonium moieties. The crown ether wheel was able to travel along the axle chain to find another stable position, which is the urethane moiety of the axle polymer end. As a result, the topologically transformation from star-shape to linear-shape was expected.
|
