| Budget Amount *help |
¥51,090,000 (Direct Cost: ¥39,300,000、Indirect Cost: ¥11,790,000)
Fiscal Year 2009: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2008: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2007: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2006: ¥31,070,000 (Direct Cost: ¥23,900,000、Indirect Cost: ¥7,170,000)
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| Research Abstract |
For the purpose of development of a new technology to elevate product value of sulfur-containing materials and a new research field of sulfur chemistry, we investigated the synthesis and evaluation of novel sulfur-containing compounds. As a result, we developed high performance optical polymers such as 9,9-diarylfluorene- and 9,9'-spirobifluorene-containing polythioethers and polysulfones with high refractive index and low birefringence. In addition, we developed a recyclable cross-linked polymer based on a combination of dynamic covalent chemistry of aromatic disulfide bond and rotaxane chemistry, in which both the trunk polymer and the cross-linking agent change their positions without any apparent change in their chemical structures during cross-linking reaction.
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