| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Outline of Final Research Achievements |
In situ Raman apparatus was developed to observe the microscopic deformation and melting/crystallization behavior of semi-crystalline polymers such as polyethylene and polypropylene. During the uniaxial stretching of these semi-crystalline polymeric solids, it was found that the molecular chains orient toward a direction tilt from the stretching axis in the yielding region, and that compression stress was applied perpendicular to the polymer chains. These peculiar deformation suggests that the rotational motions of the lamellar cluster units which is formed by the collapse of the spherulites are the origin of the orientation after the yielding.
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