| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
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| Outline of Final Research Achievements |
We have prepared several metal oxo-oligomers that contains titanium, zirconium or zinc as metal atoms and are chemically modified by benzoylacetone, ethyl benzoylacetate, phthalic anhydride or succinic anhydride. We have demonstrated that these chemically modified metal oxo-oligomers are obtained as transparent materials that exhibit glass transition. Some of them had refractive indices higher than 1.7. For some glasses, we found that the glass transition and softening temperatures increase with decreasing chemical modifier content or with increasing drying temperature and time, the refractive index increases with decreasing chemical modifier content or with increasing drying temperature, and the durability in water increases with increasing drying temperature. We also found that the addition of organic polymers can increase the mechanical hardness of such glasses.
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