SGER: Carbon Nanotube Polyimide Microsensors by Micro Raman Spectroscopy

管道摘要该SGER奖支持非接触式微传感器的建模、合成和测试，该微传感器由悬浮在中空聚酰亚胺微球中的单壁碳纳米管组成。 微偏振拉曼光谱将用于检测沿悬浮在微球壁内的单壁碳纳米管的纵向轴线的应变沿着，从而确定总体微球变形状态。 拉曼光谱结果和微球变形之间的相关性将通过分析和实验来确定。 先前开发的用于高性能聚酰亚胺泡沫的聚酰亚胺微球的合成的独特方法将适于生产直径在100微米范围内并且含有单壁碳纳米管的微球。考虑到聚酰亚胺的高温性能，微球应耐受350摄氏度的温度。 该材料应具有作为压力和温度的传感器材料的应用，其可以被光学地询问。

Pipes abstractThis SGER award supports the modeling, synthesis and testing of non-contact microsensors consisting of single walled carbon nanotubes suspended in hollow polyimide microspheres. Micro polarized Raman spectroscopy will be used to detect strain along the longitudinal axes of the single walled carbon nanotubes suspended within the wall of the microsphere and thereby determine overall microsphere deformation state. Correlation between Raman spectral results and microsphere deformation will be determined analytically as well as experimentally. Unique methods for synthesis of the of the polyimide microsphere developed earlier for high performance polyimide foams will be adapted to produce the microspheres in the range of 100 microns in diameter and containing single walled carbon nanotubes. Given the elevated temperature properties of the polyimide, the microspheres should withstand temperatures of 350 degrees Celsius. The material should have applications as a sensor material for pressure and temperature which can be interrogated optically.