Design and morphology control of polymer nanocomposites using light-driven phase separation phenomena
Van-Pham, Dan-Thuy; Trinh, Xuan-Anh; Nakanishi, Hideyuki; Tran-Cong-Miyata, Qui; Van-Pham, Dan-Thuy; Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan; Trinh, Xuan-Anh; International Training Institute for Materials Science (ITIMS), Hanoi University of Technology, 1 Dai Co Viet Road, Hanoi, Vietnam; Nakanishi, Hideyuki; Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan; Tran-Cong-Miyata, Qui; Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan
Журнал:
Advances in Natural Sciences: Nanoscience and Nanotechnology
Дата:
2010-03-01
Аннотация:
Phase separation of polymer mixtures is induced and controlled by photo-cross-link and photopolymerization using ultraviolet (UV) light. By taking advantage of the competition between phase separation and chemical reactions, a variety of morphologies such as co-continuous, spatially graded co-continuous and periodic structures with controllable periods, and hexagonal structures, etc, are obtained experimentally. The reaction kinetics (photo-cross-link or photopolymerization), reaction-induced elastic strain and phase separation kinetics are monitored, respectively, by UV–Vis spectroscopy, FTIR, Mach–Zehnder interferometry (MZI), light scattering (LS) and laser-scanning confocal microscopy (LSCM). Spatial modulation of light intensity generated by computer-assisted irradiation (CAI) is also used to induce phase separation of polymer blends. The correlation between the reaction-induced phase separation of polymer mixtures and the competing interactions is discussed with some perspectives on designing polymer materials with high performance.
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