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首页> 外文期刊>Langmuir: The ACS Journal of Surfaces and Colloids >Polymerization of Room-Temperature Ionic Liquid Monomers by Electron Beam Irradiation with the Aim of Fabricating Three-Dimensional Micropolymer/Nanopolymer Structures
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Polymerization of Room-Temperature Ionic Liquid Monomers by Electron Beam Irradiation with the Aim of Fabricating Three-Dimensional Micropolymer/Nanopolymer Structures

机译：以电子束辐照为目的的室温离子液体单体的聚合，以制造三维微聚合物/纳米聚合物结构为目的

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摘要

A novel method for fabricating microsized and nanosized polymer structures from a room-temperature ionic liquid (RTIL) on a Si substrate was developed by the patterned irradiation of an electron beam (EB). An extremely low vapor pressure of the RTIL, 1-allyl-3-ethylimidazolium bis((trifluoromethane)sulfonyl)amide, allows it to be introduced into the high-vacuum chamber of an electron beam apparatus to conduct a radiation-induced polymerization in the nanoregion. We prepared various three-dimensional (3D) microanopolymer structures having high aspect ratios of up to 5 with a resolution of sub-100 nm. In addition, the effects of the irradiation dose and beam current on the physicochemical properties of the deposited polymers were investigated by recording the FT-IR spectra and Youngs modulus. Interestingly, the overall shapes of the obtained structures were different from those prepared in our recent study using a focused ion beam (FIB) even if the samples were irradiated in a similar manner. This may be due to the different transmission between the two types of beams as discussed on the basis of the theoretical calculations of the quantum beam trajectories. Perceptions obtained in this study provide facile preparation procedures for the microanostructures.
机译：通过电子束（EB）的图案化辐照，开发了一种从室温离子液体（RTIL）在Si基板上制造微米级和纳米级聚合物结构的新颖方法。 RTIL，1-allyl-3-ethylimidazolium bis（（trifluoromethane）sulfonyl）amide的极低蒸汽压允许将其引入电子束设备的高真空腔中，以在电子束设备中进行辐射诱导的聚合反应。纳米区域。我们制备了具有高达5的高纵横比且分辨率低于100 nm的各种三维（3D）微米/纳米聚合物结构。另外，通过记录FT-IR光谱和杨氏模量，研究了辐照剂量和束流对沉积聚合物的理化性质的影响。有趣的是，即使以类似的方式照射样品，获得的结构的整体形状也与我们最近使用聚焦离子束（FIB）的研究中制备的结构不同。这可能是由于根据量子束轨迹的理论计算所讨论的两种类型的束之间的透射率不同。在这项研究中获得的认识为微/纳米结构提供了方便的制备程序。

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