Facile Preparation of Electrospun Poly(ethylene oxide)/Poly(acrylic acid) Porous Fibrous Membranes and Their Sensing Functionality Study

Fa-hu Yang; Tao Chen; Lin Li; Ha-li Zhao

doi:10.11777/j.issn1000-3304.2026.26055

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Facile Preparation of Electrospun Poly(ethylene oxide)/Poly(acrylic acid) Porous Fibrous Membranes and Their Sensing Functionality Study

更新时间：2026-07-10

- Facile Preparation of Electrospun Poly(ethylene oxide)/Poly(acrylic acid) Porous Fibrous Membranes and Their Sensing Functionality Study
- Acta Polymerica Sinica Pages: 1-12(2026)
- 作者机构：
  
  昆明理工大学化学工程学院昆明 650504
- 作者简介：
  
  Tao Chen, E-mail: chentaokm@kust.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2026.26055
  CLC：
- CSTR：32057.14.GFZXB.2026.7635
- Received：10 April 2026，
  
  Accepted：25 May 2026，
  
  Online First：10 July 2026，
- 稿件说明：
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杨发浒, 陈涛, 李林, 赵海利. 聚氧化乙烯/聚丙烯酸多孔纤维膜的静电纺丝制备及其传感功能. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26055.

Yang, F. H.; Chen, T.; Li, L.; Zhao, H. L. Facile preparation of electrospun poly(ethylene oxide)/poly(acrylic acid) porous fibrous membranes and their sensing functionality study. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26055.
杨发浒, 陈涛, 李林, 赵海利. 聚氧化乙烯/聚丙烯酸多孔纤维膜的静电纺丝制备及其传感功能. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26055. DOI： CSTR： 32057.14.GFZXB.2026.7635.

Yang, F. H.; Chen, T.; Li, L.; Zhao, H. L. Facile preparation of electrospun poly(ethylene oxide)/poly(acrylic acid) porous fibrous membranes and their sensing functionality study. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26055. DOI： CSTR： 32057.14.GFZXB.2026.7635.

摘要

聚丙烯酸(PAA)和聚氧化乙烯(PEO)在溶剂中易络合是限制PEO/PAA静电纺丝薄膜制备的重

要原因. 本研究以体积比7:3的

-二甲基甲酰胺和丙酮作为溶剂，以静电纺丝工艺制备了PEO/PAA多孔纤维膜，发现纺丝溶液中聚合物质量分数和PEO与PAA的质量比对多孔纤维膜的结构和性能具有重要影响. 在聚合物质量分数为6 wt%时，PEO/PAA多孔纤维膜的纤维形貌最优，且当PEO与PAA的质量比为5:1时，薄膜具备形状记忆功能，在40%拉伸变形后的薄膜经60 ℃加热处理即可恢复，同时，薄膜也表现出良好的湿度响应行为，当薄膜放置在未戴手套的手掌时，会沿远离手掌方向迅速变形. 此外，当质量比为1:1时，薄膜的力学性能最优，断裂伸长率高达882%. 将液态金属刮涂在薄膜表面后制备的电容式可穿戴传感器，具有良好的弹性恢复能力和宽应变响应性，在100%应变下的2000次循环测试中的传感性能稳定可靠，并可响应手指弯曲、摆腕、吞咽、咀嚼等动作. 本研究为柔性PEO/PAA多孔纤维膜的制备及传感功能化提供了简易的制备方案.

Abstract

The tendency of poly(acrylic acid) (PAA) and poly(ethylene oxide) (PEO) to readily form complexes in solution is one of the key factors limiting the fabrication of PEO/PAA electrospun membranes. In this study

PEO/PAA porous fiber membranes were fabricated

via

electrospinning using a solvent mixture of

-dimethylformamide and acetone at a volume ratio of 7:3. It was found that both the polymer concentration in the spinning solution and the PEO-to-PAA mass ratio exerted significant influences on the structure and properties of the porous fiber membranes. The membrane exhibited the most uniform fibre morphology under the mass fraction of 6 wt%. Moreover

the membrane

showed shape-memory behaviour and humidity responsiveness at a mass ratio of 5:1. After experiencing 40% tensile deformation

the membrane recovered to its original shape when heating at 60 ℃. Once the membrane placed on human hand

it could deform rapidly in a direction opposite to the hand. Furthermore

the membrane exhibited the optimal mechanical performance with an elongation at break up to 882% when the mass ratio was 1:1. The liquid metal was blade-coated onto the membrane surface for assembling a capacitive wearable sensor

which displayed excellent elastic recovery and wide-range strain response. The sensor also maintained stable and reliable sensing performance even suffered to 2000 cycles at 100% strain. Besides

the sensor could detect the finger bending

wrist motion

swallowing and chewing. This work provides a convenient electrospinning strategy and sensor preparation strategy for PEO/PAA porous fibrous membranes.

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Keywords

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