| Budget Amount *help |
¥25,220,000 (Direct Cost: ¥19,400,000、Indirect Cost: ¥5,820,000)
Fiscal Year 2019: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2018: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2017: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2016: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Outline of Final Research Achievements |
Systematic study on mechanical properties and dynamics of polyrotaxane glass were carried out. Various polyrotaxane glasses were synthesized from polyrotaxane derivatives that consist of different polymers and threaded cyclic molecules with different coverages. As a result, we revealed the following characteristics in polyrotaxane glasses: 1) large motions of the threading polymers within the glassy framework formed by the cyclic components, 2) toughening mechanism associated with the stress-induced intramolecular phase-separation between different components, 3) significant prolongation of the glass transition dynamics due to the topological constraints, and 4) a correlation between the mechanical toughness and the mobility of the threading polymers in the glass state.
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