摘要
应用LB成膜技术,将聚酰胺酸和十六胺在溶剂中混合制成单分子膜,并沉积到新解理的高取向热解石黑衬底上,然后用原子力显微镜(AFM)现测其微结构.现察到聚酰亚胺聚合链分子在空间排列的各种构象,经定标测定:实验结构参数与用分子动力学在理论上的估算值相吻合,证明了所观测到的AFM图象的真实性。
Abstract In this paper, the microscopic molecular structure of polyimide Langmuir-Blodgett (LB)film on graphite has been investigated by atomic force microscope (AFM). The AFM images directly indicated that the polymer chains was observed. The experimental results arc in fair agreement with the theoretical calculations of molecular dynamics.