| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
|---|
| Outline of Final Research Achievements |
We analyzed the chemical interaction of the phosphoric-acid ester monomer 10-methacryloyloxydecyldihydrogenphosphate (10-MDP) with zirconia using 1H and 31P MAS NMR and 1H→31P Heteronuclear Correlation (HETCOR) NMR, and determined the shear bond strength of composite cement to 10-MDP-treated zirconia. The shear bond strengt was significantly higher to 1ppb 10-MDP-treated zirconia than to untreated zirconia. The shear bond strengt increased with the concentration of 10-MDP. NMR revealed a 31P chemical shift of 10-MDP upon interaction with zirconia. 10-MDP improved SBS to zirconia in a concentration-dependent manner. NMR detected the presence of 10-MDP onto zirconia, even after being washed with acetone; 10-MDP chemically interacted with zirconia.
|
