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首页> 外文期刊>Journal of Applied Polymer Science >Combination of temperature and saturated vapor annealing for phase separation of block copolymer
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Combination of temperature and saturated vapor annealing for phase separation of block copolymer

机译：温度与饱和蒸汽退火相结合，用于嵌段共聚物的相分离

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Phase separation of block copolymer films is a perspective technique for the creation of nanostructured templates. The phase separation can be induced by thermal or vapor solvent annealing. However, a standardized and reproducible technique of the phase separation is still missing, even though many papers describing various experimental conditions. In this article we have tried to develop standardized and reproducible technique of the phase separation, which can be easily scaled up. For this purpose we used the combination of the thermal and vapor annealing of poly(styrene-b-4-vinylpyridine) copolymer films on a glass substrate under static conditions. The technique was tailored by the choice of optimal solvent for the vapor annealing, based on the solvent polymer interaction. Finally, the films were reconstructed by immersing in methanol or ethanol and stretching of the P4VP component during the reconstruction was investigated by the angle-resolved X-ray photoelectron spectroscopy. Morphology of the films was investigated by the atomic force microscopy and confocal microscopy. The kinetics of the phase separation was also studied. The presented combined technique of the thermal and vapor annealing can be easily temperature-controlled for reproducibly obtaining the films of a desired morphology. (C) 2014 Wiley Periodicals, Inc.
机译：嵌段共聚物薄膜的相分离是用于创建纳米结构模板的一种透视技术。相分离可以通过热或气相溶剂退火引起。但是，尽管许多论文描述了各种实验条件，但仍缺少标准化且可重现的相分离技术。在本文中，我们尝试开发标准化且可重现的相分离技术，该技术可以轻松扩展。为此，我们在静态条件下结合了玻璃基板上的聚（苯乙烯-b-4-乙烯基吡啶）共聚物薄膜的热退火和气相退火。该技术是根据溶剂与聚合物的相互作用，通过选择用于蒸汽退火的最佳溶剂而量身定制的。最后，将膜浸入甲醇或乙醇中进行重建，并通过角分辨X射线光电子能谱研究重建过程中P4VP组分的拉伸。通过原子力显微镜和共聚焦显微镜研究了膜的形态。还研究了相分离的动力学。所提出的热退火和蒸汽退火的组合技术可以容易地进行温度控制，以可再现地获得期望形态的膜。 （C）2014威利期刊公司

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