Design and morphology control of polymer nanocomposites using light-driven phase separation phenomena

被引：2
作者：
Van-Pham D.-T. [1 ]
Trinh X.-A. [2 ]
Nakanishi H. [1 ]
Tran-Cong-Miyata Q. [1 ]
机构：
[1] 1 Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki
[2] International Training Institute for Materials Science (ITIMS), Hanoi University of Technology, Hanoi, Vietnam
来源：
Advances in Natural Sciences: Nanoscience and Nanotechnology | 2010年 / 1卷 / 01期
关键词：
Laser scanning confocal microscopy; Mach-Zehnder interferometry; Nanocomposites; Phase separation; Photo-crosslink reaction; Polymer blends;
D O I：
10.1088/2043-6254/1/1/013002
中图分类号：
学科分类号：
摘要：
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. © 2010 Vietnam Academy of Science & Technology.
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