Influence of Anion Exchange in Self-Assembling of Polymeric Ionic Liquid Block Copolymers
Influence of Anion Exchange in Self-Assembling of Polymeric Ionic Liquid Block Copolymers
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DOI：
10.1021/ma200213s
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发表时间：
2011-06-28
期刊：
影响因子：
5.5
通讯作者：
Garcia, Ignacio
中科院分区：
文献类型：
--
作者：
Carrasco, Pedro Maria;de Luzuriaga, Alaitz Ruiz;Garcia, Ignacio
提出了一种新的离子液体嵌段共聚物层状相畴尺寸的调节方法。聚合物离子液体中的阴离子交换开辟了新的方法来改变片层结构域的尺寸，而不改变纯共聚物的两个不同嵌段之间的比率。本论文主要研究了聚（2-乙烯基吡啶）在聚（苯乙烯-b-2-乙烯基吡啶）（PS-b-P2 VP）中季铵化的影响以及阴离子交换在纳米结构相薄膜中的作用。采用红外光谱（FTIR）、热重分析（TGA）和核磁共振（NMR）等手段对嵌段共聚物的季铵化改性和离子液体的阴离子交换反应进行了表征。此外，初始嵌段聚合物和几种聚合物离子液体嵌段共聚物的形态表征已进行了原子力显微镜（AFM），以分析这些嵌段共聚物的纳米结构中的阴离子的影响。
A new technique for the modification of lamellar domain sizes in polymeric ionic liquid block copolymers has been proposed. Anion exchange in polymeric ionic liquids opens new ways to modify the sizes of lamella domains without modifying the ratio between the two different blocks of the neat copolymer. This study focuses on the influence of quaternization of poly(2-vinylpyridine) in poly(styrene-b-2-vinylpyridine) (PS-b-P2VP) and the effect of anion exchange in the nanostructured phases for thin films. The resulting materials obtained from the quaternization modification technique of the block copolymers and the anion exchange of the polymeric ionic liquid were characterized with Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and nuclear magnetic resonance (NMR). Furthermore, morphological characterization of the initial block polymer and several polymeric ionic liquid block copolymers has been carried out by atomic force microscopy (AFM) in order to analyze the influence of the anion in the nanostructures of these block copolymers.