| 张靖,张亮亮,撒玉鹏,菅晓霞.化学通报,2024,87(11):1343-1347,1342. |
| 聚(丙烯酸丙烯酰胺)离子凝胶的导电性和传感性能 |
| Electrical Conductivity and Sensing Performance of Poly (acrylic acid/acrylamide) Ionogels |
| 投稿时间：2024-06-15 修订日期：2024-07-17 |
| DOI： |
| 中文关键词: 聚(丙烯酸/丙烯酰胺) 离子凝胶 电导率 |
| 英文关键词:Poly (acrylic acid/acrylamide, ionogels, conductivity |
| 基金项目: |
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| 摘要点击次数: 267 |
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| 中文摘要: |
| 本文采用自由基共聚原理，制备了网状结构的聚(丙烯酸/丙烯酰胺)（P(AA/AM)）基体树脂，引入1-乙基-3-甲基咪唑醋酸盐作溶剂，原位聚合得到离子液体质量分数为35 ~70 %的P(AA/AM)离子凝胶。所制备的离子凝胶中离子液体与P(AA/AM)良好相容，离子液体的加入降低了P(AA/AM)聚合物的短程有序性，导致形成完全的无定型结构，220 ℃以内热稳定性良好。离子液体含量为70 %的P(AA/AM)离子凝胶，其拉伸强度为4.11 MPa，电导率达0.315 S?m-1，且该P(AA/AM)离子凝胶对温度和拉伸形变有较高敏感度，20℃时的电阻温度系数为4.0%·℃-1，可作为热传感器和柔性传感器监测人体关节运动。 |
| 英文摘要: |
| Poly (acrylic acid/acrylamide) ionogels were synthesized by introducing 1-ethyl-3-methylimidazolium ethyl sulfate into the P(AA/AM) ross-linked polymer in radical copolymerization, while the mass fraction of ionic liquid changed from 35% to 70%. The ionic liquid is well compatible with P (AA/AM) in the synthesized ionic gel, and the short-range ordered of P(AA/AM) polymer is reduced or even formed a completely amorphous structure. It has good thermal stability within 220 ℃, the tensile strength of P(AA/AM) ionogel with mass fraction 70 % of ionic liquid is 4.11 MPa, and the conductivity is 0.315 S?m-1. P(AA/AM) ionogel is highly sensitive to temperature and tensile deformation, and can be used as a thermal sensor and flexible sensor to monitor human joint movement. The temperature coefficient of resistance at 20 ℃ is 4.0%·℃-1. |
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