| Budget Amount *help |
¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Fiscal Year 2017: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
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| Outline of Final Research Achievements |
In this study, to understand the effect of difference in molecular structure on viscoelastic behavior, tensile and stress relaxation analysis of polyolefin were carried out by molecular dynamic simulation. In the case of tensile analysis, free volume inside of polymers were increased with tensile strain increased. It was clarified that the increase of free volume leads to the occurrence of damage, and they have the strain rate and temperature dependency. In the case of stress relaxation analysis, relaxation speed decreased with the molecular weight of side chain increased. And it was revealed that the stress relaxation behavior shifts the conformation to the stable confirmation such as trans type and reduces kinking.
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