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Straightforward Synthesis and Evaluation of Polymeric Sensing Materials for Acetone Detection
Macromolecular Reaction Engineering ( IF 1.8 ) Pub Date : 2020-04-21 , DOI: 10.1002/mren.202000004
Alison J. Scott 1 , Noushin Majdabadifarahani 1 , Katherine M. E. Stewart 2 , Thomas A. Duever 3 , Alexander Penlidis 1
Affiliation  

Three polymeric materials (polyaniline, polypyrrole, and poly(methyl methacrylate)) are selected, prepared, and evaluated for potential use in acetone sensing (for possible diabetes‐related applications). Of the materials studied, polyaniline and polypyrrole show the most promise. Polypyrrole allows for more acetone sorption (i.e., higher concentration of acetone sorbed), but does not distinguish between different target analytes (that is, it is not selective). A material's ability to distinguish between several gas analytes simultaneously (in a gas mixture) is rarely evaluated; selectivity is typically based on a “one‐analyte‐at‐a‐time” investigation. However, comparison of acetone sorption (in one experimental test) and interferent sorption (in a complementary experimental test) does not consider interactions that might occur between gas analytes; this motivates the sorption analysis of gas mixtures that is shown in this work. The most promising results are obtained when polyaniline or polypyrrole is exposed to acetone‐rich gas mixtures with low amounts of acetaldehyde, ethanol, and benzene (interferent gases). Polymer doping using three metal oxides (SnO2, WO3, and ZnO) is also investigated, but metal oxide addition has a limited effect on the sorption performance. This is true for all three metal oxides, regardless of the amount of doping (over the range studied; up to 20 wt%).

中文翻译:

丙酮检测聚合物传感材料的简单合成与评估

选择,准备和评估三种聚合材料(聚苯胺,聚吡咯和聚甲基丙烯酸甲酯)在丙酮感测中的潜在用途(可能与糖尿病相关的应用)。在研究的材料中,聚苯胺和聚吡咯显示出最大的前景。聚吡咯允许更多的丙酮吸附(即,更高浓度的丙酮吸附),但不能区分不同的目标分析物(即,它不是选择性的)。很少评估一种材料同时(在气体混合物中)区分几种气体分析物的能力。选择性通常基于“一次一次分析”的研究。然而,丙酮吸附(在一项实验测试中)和干扰吸附(在一项补充实验测试中)的比较未考虑气体分析物之间可能发生的相互作用;这激发了这项工作中所示的混合气体的吸附分析。将聚苯胺或聚吡咯暴露于含有少量乙醛,乙醇和苯(干扰气体)的富含丙酮的气体混合物中,可获得最有希望的结果。使用三种金属氧化物(SnO还研究了图2,WO 3和ZnO),但是添加金属氧化物对吸附性能的影响有限。不论掺杂量如何(在所研究的范围内;最高20 wt%),这对于所有三种金属氧化物都是如此。
更新日期:2020-04-21
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