仿生制备功能性聚合物光子晶体

BIOINSPIRED FABRICATION OF FUNCTIONAL POLYMER PHOTONIC CRYSTALS

简述了自然界生物光子晶体经过不断的进化与演变而具有的一些特殊的性能,如亮丽的结构色彩、特殊的浸润性及高强度.受自然界生物光子晶体的这些特殊性能启发,通过对聚合物乳胶粒硬核软壳结构、表面功能基团及表面形貌的设计和调控等方法仿生制备了具有特殊浸润性的光子晶体;并在胶体晶体的聚合物乳胶粒间引入光交联聚合物,制备得到高强度的光子晶体;通过对蘑菇头形状乳胶粒两端的浸润性差异的设计制备,组装得到新型的各向异性结构的光子晶体.进一步发展了这些功能性光子晶体在湿度检测、油传感、自振荡体系等方面的应用.发展了通过喷涂、打印方法实现大面积、图案化聚合物光子晶体的简单制备.

Photonic crystals （ PCs） in nature have been endowed many functions,such as fantasy structure colors,special wettabilities and high film strength. On the basis of our recent work inspired by these special functions of PCs in nature,this feature article introduced that polymer PCs with special wettabilities were fabricated by constructing core-shell polymer latex,adjusting the surface morphology of latex and other methods. PCs with high strength were prepared by photo-crosslinked among the polymer latex arrays. Anisotropic PCs were fabricated from mushroom-caped latex particle. Such functional PCs were further demonstrated applications in humidity sensing,oil sensing,self-oscillating system sensing,etc. Finally,largescale fabrication of functional PCs has been demonstrated by spray coating and ink-jet printing. Those studies will be of great importance for developing novel polymer PCs materials.