Photoinduced Ordering of Block Copolymers
Photoinduced Ordering of Block Copolymers
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DOI：
10.1021/nl104080v
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发表时间：
2011-03-01
期刊：
影响因子：
10.8
通讯作者：
Watkins, James J.
中科院分区：
文献类型：
--
作者：
Daga, Vikram K.;Schwartz, Evan L.;Watkins, James J.
无序嵌段共聚物（BCP）的光诱导排序将为在无序材料的任意限定区域中形成有序的纳米结构提供一种按需、非侵入性的途径。在这里，我们使用一种快速而简单的方法实现了这一目标，其中与 BCP 混合的添加剂的光转换引入了添加剂和其中一个链段之间的强相互作用，并在 BCP 混合物中产生了强有序性。该策略通常适用于含有能够与添加剂形成氢键的链段的嵌段共聚物。
Photoinduced ordering of disordered block copolymers (BCPs) would provide an on-demand, nonintrusive route for formation of well-ordered nanostructures in arbitrarily defined regions of an otherwise disordered material. Here we achieve this objective using a rapid and simple approach in which photoconversion of an additive blended with the BCP introduces strong interactions between the additive and one of the chain segments and induces strong order in the BCP blend. The strategy is generally applicable to block copolymers containing chain segments capable of hydrogen bonding with the additive.