Device for the Acquisition of Dynamic Data Enables the Rapid Characterization of Polymer Membranes
Device for the Acquisition of Dynamic Data Enables the Rapid Characterization of Polymer Membranes
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动态数据采集装置可快速表征聚合物膜
DOI：
10.1021/acsapm.2c00048
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发表时间：
2022
影响因子：
5
通讯作者：
Phillip, William A.
中科院分区：
文献类型：
--
作者：
Muetzel, Zachary W.;Ouimet, Jonathan Aubuchon;Phillip, William A.
创造能够减少表征聚合物膜传输性能所需的时间、能量和资源的系统和技术有助于提高材料和工艺开发的速度。在这项研究中，商业上可用的硬件和3D打印部件与图形用户界面集成在一起，以开发一种自动表征膜传输特性的设备。该系统同步收集确定水力渗透系数和溶质渗透系数所需的质量、浓度和压力数据。数据收集和关闭过程的自动化消除了研究人员在实验开始后在场的需要，有效地减少了每次实验对他们时间的需求40%。此外，通过识别输运系数的浓度依赖关系，实验产生了比标准方法更多的信息。例如，使用动态数据采集(ADD)设备执行的透析过滤实验量化了荷电功能化聚[三氟甲基丙烯酸三氟乙酯-甲基醚甲基丙烯酸酯-甲基丙烯酸缩水甘油酯]膜在5至65 mM的保留浓度范围内对氯化镁的截留率。一个单一的透析过滤实验证实了先前报道的数据，这些数据是从一系列一次性过滤实验中收集的，这些数据是在用六甲二胺部分功能化的膜上收集的。用乙二胺和三羟甲基丙烷三[聚丙二醇胺封端]醚对膜进行了官能化分析。高通量透析过滤实验能够阐明由于这些对膜化学的改变而导致的明显的浓度依赖的截留曲线。通过采用恒定体积通量穿透实验对膜吸附剂进行表征，突出了ADD装置的多功能性。最终，该设备表征功能聚合物膜的能力将有助于发展将宏观膜特性与大分子设计联系起来的基本见解。
Creating systems and techniques capable of reducing the time, energy, and resources needed to characterize the transport properties of polymer membranes can help to increase the rate of material and process development. Within this study, commercially available hardware and 3D-printed parts are integrated with a graphical user interface to develop an apparatus that automates the characterization of membrane transport properties. The system synchronizes the collection of the mass, concentration, and pressure data required to determine the hydraulic permeability and solute permeability coefficients. Automating the data collection and shutdown processes removes the need for a researcher to be present after the start of the experiment, effectively reducing the demand on their time by 40% per experiment. Moreover, the experiments generate more information than standard approaches by identifying the concentration dependencies of the transport coefficients. As an example, diafiltration experiments executed using the acquisition of dynamic data (ADD) device quantified MgCl2rejection by charge-functionalized poly[trifluoroethyl methacrylate-co-oligo(ethylene glycol) methyl ether methacrylate-co-glycidyl methacrylate] membranes over a range of retentate concentrations from 5 to 65 mM MgCl2. A single diafiltration experiment corroborated previously reported data, collected from a series of one-off filtration experiments, on membranes functionalized with hexamethylene diamine moieties. Membranes functionalized with ethylene diamine and trimethylolpropane tris[poly(propylene glycol), amine terminated] ether were also analyzed. High-throughput diafiltration experiments were able to elucidate the distinct concentration-dependent rejection profiles that resulted from these changes to the membrane chemistry. The versatility of the ADD device was highlighted by adapting it to characterize membrane sorbents using constant volumetric flux breakthrough experiments. Ultimately, the ability of this device to characterize functional polymer membranes will aid in the development of fundamental insights that connect macroscopic membrane properties with macromolecular design.
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作者：
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通讯作者：
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DOI：
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发表时间：
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期刊：
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影响因子：
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