| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Interdiffusion Dynamics of Polymer Melts Confined Between Immiscible Polymer Walls |
| 초록 |
The behaviors near the polymer-polymer interface are important in the practical application such as organic electronics, coatings, and membranes. Particularly, in the case of thermal welding, the interface is heated above the glass transition. Since most different polymers are immiscible, the structure and dynamics near the polymer-polymer interface are different from the bulks. In order to investigate the effect of the geometrical confinement on the polymer mobility, here we prepared bilayers of polymethylmetacrylate (PMMA) / deuterated PMMA (d-PMMA) sandwiched between the polystyrene (PS) layers. Neutron reflectivity technique was employed to measure the interdiffusion of PMMA / d-PMMA with various thicknesses in a repulsive confinement system. In this repulsive relationship, the dynamics became faster as the thickness became thinner. However, we found that the dynamics of the confined PMMA is the same regardless of the interfacial roughness between the PS and PMMA. |
| 저자 |
조경일1, 오영훈2, 성봉준2, Sushil Satija3, 구자승4
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| 소속 |
1한국원자력(연), 2서강대, 3National Institute of Standard and Technology, 4충남대 |
| 키워드 |
Diffusion Dynamics; Confined Polymers; Neutron Reflectivity; Polymer-Polymer Interface
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| E-Mail |
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