| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
We studied the elongational crystallization from the supercooled melt by using polyesters, polyamide, fluoroplastics and isotactic polypropylene (iPP). We made clear that the novel morphology of “Nano-oriented crystals; NOC” was formed universally in the elongational crystallization when the elongational strain rate (ε) becomes larger than a critical one (ε*). The NOC of polyesters showed the morphology of three-dimensional orientation. We clarified that an important role of primary structure of polymer in NOC formation. The structure of NOC of all materials showed the most stable phase and showed high performance such as high heat resistance and so on. The ε* became significantly small and the crystallization into NOC became much easier in the case that the sliding diffusion of polymer chain is easy.
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