In this study, liquid droplets of 1-allyl-3-methylimidazolium dicyanamide have been processed by initiated chemical vapor deposition (iCVD) with a cross-linked polymer film consisting of (hydroxyethyl)methacrylate and ethylene glycol dimethacrylate to develop free-standing, ion-conductive membranes. We found that the obtained films are solids and have a conductivity of up to 18 ± 6 mS/cm, associated with the negatively charged counterion, indicating no loss of conductivity, compared to the ionic liquid in the liquid state. The membranes were conductive within a large process window and in air, thanks to the fact that the iCVD process does not affect the mobility of the anion in the ionic liquid. Furthermore, we demonstrate that varying the deposition conditions can influence the homogeneity and conductivity of the resulting membranes. The promising results of this study represent an important stepping stone on the way to novel ion-conductive membranes.

中文翻译：

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通过引发的化学气相沉积法从离子液体中沉积离子导电膜

在这项研究中，通过引发化学气相沉积（iCVD）处理了由甲基丙烯酸（羟乙基）酯和乙二醇二甲基丙烯酸酯组成的交联聚合物膜，对1-烯丙基-3-甲基咪唑鎓二氰胺的液滴进行了处理，从而形成了独立的离子-导电膜。我们发现，所获得的膜是固体，具有高达18±6 mS / cm的电导率，与带负电的抗衡离子相关，与液态的离子液体相比，表明没有电导率损失。由于iCVD工艺不会影响阴离子在离子液体中的迁移率，因此这些膜在较大的工艺窗口和空气中均具有导电性。此外，我们证明了改变沉积条件会影响所得膜的均匀性和电导率。