聚合物棒晶小角光散射图样的计算机模拟

Computer Simulation of Small-Angle-Light-Scattering Patterns of Polymers with Rodlike Crystal Structures

以模型法光散射理论为基础 ,用计算机模拟出了聚合物棒晶的小角光散射图样 .在模拟过程中 ,把聚合物棒晶视为处于均匀介质中的各向异性棒 ,采用了二维模型及计算结构因子的方法 .模拟程序利用奔腾Ⅱ计算机和Win98操作系统 ,用VisualBasic语言编制 .模拟结果表明 ,模拟图样和实验中得到的光散射图样一致 。

The small angle light scattering (SALS) patterns of polymers with rodlike crystal structures are simulated by means of computer based on rod model theory. In this simulation, the rodlike crystals of polymers are assumed to be the optically anisotropy rods with radius of R and length of L , and some results obtained by Murakami and Hashimoto are used . The simulating programs are written in Visual Basic, which can be run on the Pentium Ⅱ computer and Windows 98 system. Both the simulated and experimental patterns are compared, and the results suggest that they are in good agreement.