Abstract

A relaxation model for the structure ripening under annealing of a microphase-separated polymer film has been developed. Equations have been derived that describe the appearance and annihilation of defects in the kinetically controlled mode based on the experimental data on the hexagonal structure evolution. Using that equations, the time dependences of the defect-free area size have been analyzed. It has been found that the predominance of the defect annihilation upon their triple contact leads to the power-law dependence of the orientation correlation length ξ_or ~ t^1/4, which is observed experimentally at high annealing temperatures. A more detailed analysis of the evolution of two types of defects (dislocations and disclinations) shows that this dependence can also be realized in a model that takes into account the annihilation of disclination pairs and quadruples providing that dislocations influence this process. The results demonstrate that macrokinetic models can describe structural rearrangements in block copolymer films.

中文翻译：

---

二嵌段共聚物薄膜结构弛豫的动力学模型

摘要

已经开发了用于在微相分离的聚合物膜的退火下结构成熟的弛豫模型。基于六边形结构演变的实验数据，得出了描述动力学控制模式下缺陷的出现和hil灭的方程。使用该方程式，分析了无缺陷区域尺寸的时间依赖性。已发现的缺陷湮没在他们的三重接触导线的优势，以定向相关长度ξ的幂律关系_或〜牛逼^1/4，这是在高退火温度下通过实验观察到的。对两种类型缺陷（位错和错位）的演变的更详细分析表明，这种依赖性也可以在考虑了错位对和四倍体les灭的模型中实现，前提是错位会影响该过程。结果表明，宏观动力学模型可以描述嵌段共聚物薄膜中的结构重排。