Polysketch Pen: Drawing from Materials Chemistry to Create Interactive Art and Sensors Using a Polyaniline Ink
Polysketch Pen: Drawing from Materials Chemistry to Create Interactive Art and Sensors Using a Polyaniline Ink
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DOI：
10.1021/acs.jchemed.0c01330
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发表时间：
2021-03-26
影响因子：
3
通讯作者：
Huang, Jiaxing
中科院分区：
文献类型：
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作者：
Prestowitz, Luke C. O.;Emery, Jonathan D.;Huang, Jiaxing
书写工具（例如钢笔）在课堂上无处不在，但它们的功能主要用于一个目的：它们用于在纸上表达想法和记录信息。然而，通过用易于合成的导电聚合物墨水取代笔中的传统墨水，可以将简单的书写工具变成可以创建电路、传感器和其他潜在光电设备的材料处理工具。 Polysketch 笔是一种改良的圆珠笔，含有导电聚苯胺墨水，高中生和本科生可以在 1-3 小时的实验室环境中安全合成。墨水的合成和配方以及笔的构造让学生接触纳米材料合成、化学/材料纯化和功能设计，其具体目标是：生产一种适当粘稠、快干的墨水，并具有适当的聚苯胺负载水平，以实现导电性能。 Polysketch 笔在纸上留下导电痕迹，可用于绘制简单的电路或构建响应机械应变或环境化学物质的传感器。这项活动的目的是将材料相关的聚合物合成引入高中和本科生实验室，同时引入导电聚合物的概念，例如导电网络中的掺杂/去掺杂和渗滤。该活动的目的是让学生有机会通过优化油墨配方来探索加工-结构-特性-性能之间的关系。最重要的是，学生最终将获得一种有形的、多功能的产品和工具，使他们能够探索其他类型的交互设备和艺术，以“追踪他们的创作路线”。
Writing instruments, such as pens, are ubiquitous in the classroom, but their functionality is largely for one purpose: they are used to represent ideas and record information on paper. However, by replacing the conventional ink in a pen with easy-to-synthesize conducting polymer-based inks, it is possible to change a simple writing utensil into a materials processing tool that can create circuits, sensors, and potentially other optoelectronic devices. The Polysketch pen is a modified ballpoint pen that contains a conductive polyaniline ink that can be synthesized safely by high school and undergraduate students in a 1-3 hour laboratory setting. The synthesis and formulation of the ink and the construction of the pen expose students to nanomaterial synthesis, chemical/material purification, and functional design with a specific goal: producing an appropriately viscous, fast-drying ink with a suitable loading level of polyaniline for conductive properties. The Polysketch pen leaves conductive traces on paper, which can be used to draw simple circuits or construct sensors responding to mechanical strains or ambient chemical species. This activity has the objective of introducing materials-relevant polymer synthesis into high school and undergraduate laboratories while introducing concepts in conductive polymers such as doping/dedoping and percolation in conductive networks. The activity is constructed such that students have the opportunity to explore processing-structure-properties-performance relationships by optimizing ink formulation. Most importantly, students will ultimately arrive at a tangible, versatile product and tool that enables them to explore other types of interactive devices and art to "trace a line of their creation".