Ernst-Berl-Institute for Chemical Engineering and Macromolecular Science, Technische Universität Darmstadt , Darmstadt, D-64287, Germany.
Langmuir. 2013 Sep 10;29(36):11275-83. doi: 10.1021/la4023695. Epub 2013 Aug 29.
Core-interlayer-shell (CIS) beads featuring noncross-linked hard cores were used to prepare large and well-defined elastomeric opal films with remarkably distinct iridescent reflection colors. The matrix of the opal films was cross-linked by UV-irradiation after compression molding of the CIS beads mixed with a bifunctional monomer. Stress-induced deformation of the embedded PS cores lead to hexagonally arranged spheroid oblates with an aspect ratio of 2.5. Optical characterization shows that bead deformation provokes a tremendous photonic band gap shift of about 160 nm. Fully reversible shape transition from the spheroid oblates back to the spherical beads and hence full recovery of the original photonic band gap can be achieved.
采用具有非交联硬芯的核-壳-壳（CIS）珠体制备了大尺寸、规则的弹性蛋白质蛋白膜，具有显著不同的彩虹色反射。在 CIS 珠与双官能单体混合压缩成型后，用 UV 辐照交联蛋白膜的基质。嵌入 PS 核的应力诱导变形导致六方排列的长径比为 2.5 的椭球体扁球体。光学特性表明，珠的变形引起大约 160nm 的光子带隙显著移动。可以实现从椭球体扁球体到球形珠的完全可逆的形状转变，从而完全恢复原始的光子带隙。
