Designing Ionic Liquid-Derived Polymer Composites from Poly(Ionic Liquid)–Ionene Semi-interpenetrating Networks,ACS Applied Polymer Materials

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Designing Ionic Liquid-Derived Polymer Composites from Poly(Ionic Liquid)–Ionene Semi-interpenetrating Networks
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2021-03-16 , DOI: 10.1021/acsapm.1c00080
Kathryn E. O’Harra ₁ , George M. Timmermann ₂ , Jason E. Bara ₁ , Kevin M. Miller ₂

Affiliation

While the solvating power of ionic liquids (ILs) for a variety of solute types including polymers is well-known, the use of ILs as solvents for ionenes—charged polymers with cationic moieties within the backbone—has only recently begun to be explored. IL–ionene combinations offer vast possibilities to make iongels and perhaps even use ILs to exert control over ionene organization (i.e., coil or rod). If the IL solvent is also polymerizable, then poly(IL)–ionene semi-interpenetrating networks (semi-IPNs) can be achieved. This study reports, for the first time, examples of poly(IL)–ionene semi-IPNs formed by dissolving an ionene in a vinyl-functionalized imidazolium IL followed by subsequent photopolymerization of the IL around the ionene. The resultant poly(IL)–ionene semi-IPNs exhibit greater elasticity and ionic conductivity than the neat poly(IL). Thus, the addition of 10–20 wt % ionene can lead to significant changes in the properties of poly(IL) materials. Given the limitless possibilities for IL and ionene structures, this unique type of ionic composite presents vast opportunities for material design.

中文翻译：

从聚（离子液体）-离子烯半互穿网络设计离子液体衍生的聚合物复合材料

尽管众所周知离子液体（ILs）对包括聚合物在内的各种溶质类型的溶剂化能力，但直到最近才开始探索将ILs用作紫罗兰的溶剂（紫罗兰骨架中带有阳离子部分的带电聚合物）。IL-紫罗兰的组合为制造离子凝胶提供了巨大的可能性，甚至可能使用IL来控制紫罗兰的组织（即线圈或棒）。如果IL溶剂也可聚合，则可以实现聚（IL）-紫罗兰半互穿网络（semi-IPN）。这项研究首次报道了通过将紫罗烯溶解在乙烯基官能化的咪唑鎓IL中，随后将紫罗兰围绕紫罗烯进行光聚合而形成的聚（IL）-紫罗兰半IPN的实例。所得的聚（IL）-紫罗兰半IPN比纯聚（IL）表现出更大的弹性和离子电导率。因此，添加10–20 wt％的紫罗烯会导致聚（IL）材料的性能发生重大变化。鉴于IL和紫罗兰结构的无限可能性，这种独特类型的离子复合材料为材料设计提供了巨大的机会。

更新日期：2021-04-09

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