高强度聚乙烯醇/聚苯胺/聚吡咯/TiO2导电杂化水凝胶的制备与性能

doi:10.11944/j.issn.1000-0518.2020.05.190267

摘要/Abstract

摘要：

本文以聚乙烯醇(PVA)、苯胺(ANI)、吡咯(Py)及钛酸丁酯(TBOT)为原料,通过溶胶-凝胶法、原位氧化聚合法及冷冻-融溶法一步得到聚乙烯醇/聚苯胺/聚吡咯/TiO₂(PVA/PANI/PPy/TiO₂)杂化水凝胶。结果表明,该杂化水凝胶具有优异的力学性能和导电性能。当n(ANI):n(Py)=8:2(TBOT体积为100 μL)时,其压缩强度高达2.45 MPa。同时,在外加电源的作用下,该凝胶能够使灯泡发光。当n(ANI):n(Py)=2:8(TBOT体积为150 μL)时,杂化水凝胶的电导率(0.25 S/m)最好。该杂化水凝胶有望广泛地应用在柔性可穿戴电子器件、安全离子电池、传感器和生物器件等领域。

关键词: TiO₂, 聚苯胺, 聚吡咯, 高强度导电杂化水凝胶

Abstract:

In this paper, polyvinyl alcohol/polyaniline/polypyrrole/TiO₂(PVA/PANI/PPy/TiO₂) hybrid hydrogels were synthesized by the combination of sol-gel technique, in-situ oxidation polymerization and freezing-thawing method with polyvinyl alcohol (PVA), aniline (ANI) and pyrrole (Py) and butyl titanate (TBOT) as raw materials. It is found that the hybrid hydrogel has excellent mechanical properties and electrical conductivity. When n(ANI):n(Py) is 8:2 and the volume of TBOT is 100 μL, the maximum compressive stress of the hybrid hydrogel is 2.45 MPa. Meanwhile, the hybrid hydrogel has good conductivity. Under the action of external electrical source, the bulb could be lighted. When n(ANI):n(Py) is 2:8 and the volume of TBOT is 150 μL, the hybrid hydrogel has the highest conductivity of 0.25 S/m. The hybrid hydrogel is expected to have wide applications in the fields of flexible wearable electronic devices, safe ion batteries, sensors and biological devices.

Key words: TiO₂, polyaniline, polypyrrole, tough conductive hybrid hydrogel

佘小红, 杜娟, 王璐珮, 朱雯莉, 杨巧玲, 邹智挥. 高强度聚乙烯醇/聚苯胺/聚吡咯/TiO₂导电杂化水凝胶的制备与性能[J]. 应用化学, 2020, 37(5): 541-546.

SHE Xiaohong, DU Juan, WANG Lupei, ZHU Wenli, YANG Qiaoling, ZOU Chihui. Preparation and Properties of Tough Polyvinyl/Polyaniline/Polypyrrole/TiO₂ Conductive Hybrid Hydrogel[J]. Chinese Journal of Applied Chemistry, 2020, 37(5): 541-546.

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高强度聚乙烯醇/聚苯胺/聚吡咯/TiO₂导电杂化水凝胶的制备与性能

Preparation and Properties of Tough Polyvinyl/Polyaniline/Polypyrrole/TiO₂ Conductive Hybrid Hydrogel

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