| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Research Abstract |
In thin film drying process of immiscible polymer blend in a common solvent, spontaneous polymer phase separation promotes the enhancement or suppression of solvent drying in a particular range of solvent concentrations. Simultaneous mass/fluorescent intensity measurements in the course of drying revealed that the drying enhancement takes place in the case when growth rates of phase-separated domains are lower than the critical value of 20 nm/s. The fluorescent microscopy also showed the local solvent enrichment at the interface of polymer domains in drying enhancement mode. These fact imply that the self-assembly of solvent molecules at phase-separating domain interfaces results in formation of solvent diffusion path along the interface, which assists the solvent drying across the liquid film.
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