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Photothermally Directed Assembly of Block Copolymers
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2019-12-20 , DOI: 10.1002/admi.201901679 Samantha R. Nowak 1 , Kevin G. Yager 1
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2019-12-20 , DOI: 10.1002/admi.201901679 Samantha R. Nowak 1 , Kevin G. Yager 1
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Block copolymers self‐assemble into nanoscale morphologies, spontaneously ordering under thermal annealing conditions owing to the chemical incompatibility between the blocks. While the morphologies that form can be rationalized based on equilibrium arguments, the structures seen experimentally are strongly influenced by kinetic effects including process history. Recently, a variety of photothermal processing techniques have been used to control block copolymer ordering. Photothermal methods provide access to extreme conditions, including high temperatures, large heating rates, and sharp thermal gradients. This can correspondingly be used to greatly accelerate block copolymer ordering kinetics, to pattern material order, or to probe fundamental aspects of self‐assembly by exploring process histories.
中文翻译：
嵌段共聚物的光热定向组装
嵌段共聚物自组装成纳米级形态，由于嵌段之间的化学不相容性，在热退火条件下自发地有序排列。虽然可以根据平衡参数合理化形成的形态，但实验观察到的结构会受到动力学影响（包括过程历史）的强烈影响。近来，已使用多种光热加工技术来控制嵌段共聚物的排序。光热方法可提供极端条件，包括高温，高加热速率和急剧的热梯度。相应地，这可用于极大地加快嵌段共聚物的订购动力学，图案化材料的订购，或通过探索工艺历史来探究自组装的基本方面。
更新日期：2019-12-20
中文翻译：
嵌段共聚物的光热定向组装
嵌段共聚物自组装成纳米级形态，由于嵌段之间的化学不相容性，在热退火条件下自发地有序排列。虽然可以根据平衡参数合理化形成的形态，但实验观察到的结构会受到动力学影响（包括过程历史）的强烈影响。近来，已使用多种光热加工技术来控制嵌段共聚物的排序。光热方法可提供极端条件，包括高温，高加热速率和急剧的热梯度。相应地，这可用于极大地加快嵌段共聚物的订购动力学，图案化材料的订购，或通过探索工艺历史来探究自组装的基本方面。
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