| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
Virtual Lightning Session |
| 제목 |
Thermal Molecular Motion of Poly(methyl methacrylate) in Electrospun Nanofiber Mats |
| 초록 |
Nonwoven fabrics have been widely used for many applications such as cellular scaffolds, filtration membranes, and etc. However, it seems that a geometrical effect of nano-fibers on physical properties of the nonwoven fabrics is not clear for a moment. We here examined thermal molecular motion of poly(methyl methacrylate) with different tacticity in nanofiber mats prepared by an electro-spinning method. The glass transition temperature was higher for the nanofiber mat than for the film. In addition, the apparent activation energy of the segmental motion (ΔHα*) was higher for the nanofiber mat than for the film. A possible explanation for these finding is that there exists the structural and thereby the mobility gradients in the nanofibers along the radial direction. |
| 저자 |
Keigo Kawahara, Hisao Matsuno, Keiji Tanaka
|
| 소속 |
Kyushu Univ. |
| 키워드 |
- |
| E-Mail |
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