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首页> 外文期刊>Journal of Applied Polymer Science >Novel resistive-type humidity sensor based on poly(p-diethynylbenzene)
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Novel resistive-type humidity sensor based on poly(p-diethynylbenzene)

机译：基于聚对二乙炔基苯的新型电阻式湿度传感器

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摘要

Poly(p-diethynylbenzene) (PDEB) synthesized with nickel catalyst as specified in dioxane-toluene mixed-solvent system at 25°C shows a rich trans structure with specified pendant-group content of about 35% having higher molecular weight and good solubility. A novel resistive-type humidity sensor based on PDEB is presented. Its humi-sensing characteristics are described and discussed. The impedance of the sensor changed from approx. 10~3-10~7 Ω in almost the whole humidity range [approx. 15-92% relative humidity (RH)], which is low compared with sensors based on other humi-sensitive conjugate polymers, and hysteresis of no more than 3% RH was observed. The sensor prepared by Langmuir-Blodgett (LB) deposition method shows the best humidity response. An explanation of humi-sensing behavior of PDEB is attempted by taking into account the interaction between hydrogen protons and super π-conjugate orbits in PDEB.
机译：用二恶烷-甲苯混合溶剂体系中规定的镍催化剂在25°C下合成的聚对二乙炔基苯（PDEB）表现出丰富的反式结构，具有指定的侧基含量约为35％，具有较高的分子量和良好的溶解性。提出了一种基于PDEB的新型电阻式湿度传感器。描述和讨论了其湿感特性。传感器的阻抗从大约几乎在整个湿度范围内约为10〜3-10〜7Ω[ 15-92％相对湿度（RH）]，与基于其他对humi敏感的共轭聚合物的传感器相比较低，并且观察到的迟滞不超过3％RH。通过Langmuir-Blodgett（LB）沉积方法制备的传感器显示出最佳的湿度响应。考虑到氢质子和PDEB中超π共轭轨道之间的相互作用，试图解释PDEB的湿感行为。

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