Salt-controlled lamellar spacing in ionically end-capped symmetric diblock copolymers

Salt-controlled lamellar spacing in ionically end-capped symmetric diblock copolymers
复制标题

离子封端对称二嵌段共聚物中盐控制的层状间距

DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
U. Wiesner
U. Wiesner
中科院分区：
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文献类型：
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作者：
V. Schädler;U. Wiesner

文献摘要

被引文献

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结果表明，通过引入离子基团在一个或两个对称的聚（苯乙烯-b-异戊二烯）二嵌段共聚物的链端，它是可能的控制稳定或不稳定的微相分离。首先，我们研究如何块偏析和离子聚集之间的竞争引起的片层间距的变化。此外，我们还展示了如何通过添加盐的浓度有效地微调周期性
It is shown that by introducing ionic groups at one or both chain ends of a symmetric poly(styrene-b-isoprene) diblock copolymer, it is possible to control stabilization or destabilization of the microphase separation. First we examine how the competition between block segregation and ionic aggregation induces changes in the lamellar spacing. In addition we show how the periodicity can effectively be fine-tuned by the concentration of added salt