Formation of layered organization of particle with ability of fluorescent-emission using a new polymer nanospheres

我们利用Langmuir-Blodgett （LB）技术构建了具有刚性主链和柔性侧链的芳香族聚酰胺多粒子层状结构，使其沿c轴呈高度规则的排列。通过面外x射线衍射（XRD）分析和原子力显微镜（AFM）观察对颗粒的排列进行了估计。结果表明，LB技术可形成双颗粒层状结构（y型），在空气/水界面处形成两亲性颗粒。含有高疏水性咔唑和氢化和氟化侧链的共聚物也在空气/水界面形成单粒子层，并通过LB技术显示出多粒子层。因此，利用这些技术可以控制单粒子和双粒子层状结构的形成。进一步发现，在相同的组分材料下，聚合物纳米球和聚合物纳米片可以同时形成多粒子层状组织。

We constructed a multiparticle layered organization of aromatic polyamides with rigid main chains and flexible side chains by the Langmuir-Blodgett (LB) technique, which resulted in a highly regular arrangement along the c-axis. The particle arrangement was estimated by performing out-of-plane X-ray diffraction (XRD) analysis and atomic force microscopic (AFM) observation. The results suggest that a double-particle layered structure (Y-type) is formed by the LB technique, forming amphiphilic particles at the air/water interface. Copolymers with highly hydrophobic carbazole contents and both hydrogenated and fluorinated side-chains also formed a single-particle layer at the air/water interface and exhibited multiparticle layers by a LB technique. Therefore, it is possible to control the formation of single- and double-particle layered structure using these techniques. Further, it was found that multiparticle layered organization of polymer nanospheres and polymer nanosheets could be formed simultaneously with the same component material.