论文部分内容阅读
PF8聚芴共轭高分子材料是应用于制作蓝色光激发光器件的一种有潜力功能材料,故本文利用静态光散射技术研究了PF8聚芴共轭高分子在稀薄甲苯溶液中的形态结构变化特点。研究结果显示,PF8共轭高分子在甲苯稀薄溶液中单一分子链的持续长度与Kuhn链结长度均明显受到温度的影响。这表明在较高温度下高分子与溶剂间的相互作用力较大,导致其呈现较伸展的虫状形态结构;而在较低温度下高分子与溶剂间相互作用力较小,导致其呈现收缩的结构形态。因此在较高温度状态下PF8共轭高分子应该具有比较刚硬的特征。
PF8 polyfluorene conjugated macromolecule material is a potential functional material used in the fabrication of blue photoexcited optical devices. Therefore, the static light scattering technique was used to study the morphological changes of PF8 polyfluorene conjugated macromolecules in dilute toluene solution Features. The results show that the length of single molecular chain and the length of Kuhn chain of PF8 conjugated polymer in toluene thin solution are obviously affected by temperature. This shows that at higher temperatures, the interaction between the polymer and the solvent is larger, resulting in a more extended worm-like morphology, while at lower temperatures the interaction between the polymer and the solvent is less, resulting in its appearance Shrink structural form. Therefore PF8 conjugated polymers should have more rigid characteristics at higher temperature.