Poly(vinyl alcohol)/Polypyrrole@Cellulose Nanocrystal-Based Hydrogels for Wearable Sensors

乙烯醇 聚吡咯 自愈水凝胶 纤维素 可穿戴计算机 纳米晶 材料科学 纳米技术 高分子化学 化学工程 复合材料 计算机科学 聚合物 嵌入式系统 聚合 工程类
作者
Xinyu Li,Qiyuan Zhang,Chenyang Guo,Jiang Hua
出处
期刊:ACS applied nano materials [American Chemical Society]
卷期号:7 (22): 25322-25334
标识
DOI:10.1021/acsanm.4c02851
摘要

Poor dispersibility of pure polypyrrole in the hydrophilic matrixes has limited its application in wearable sensors. Fortunately, the in situ polymerization of Py adsorbed on the CNC surface resulted in polypyrrole@cellulose nanocrystal (PPy@CNC) with excellent dispersibility and electrochemical properties. It was found that the pyrrole (Py) was adsorbed on the CNC surface through the H-bonds. The adsorption capacity of the CNCs for Py was 1006.7 mg·g–1. The PPy grew along the CNC surface during the in situ polymerization. The PPy@CNC achieved a capacitance of more than 150.15 F·g–1. Even after 1000 CV testing cycles, nearly 98% of the capacitance was preserved. Incorporating 3% PPy@CNC yielded, by repeated freezing–thawing, a conductive PVA hydrogel with an optimal conductivity of 1.43 S·m–1, stress strength of 0.23 MPa, and toughness of 265.2 kJ·m–3. As a strain sensor, its gauge factor reached up to 2.28 at the strain of 100%. The test results on the human body also showed that this hydrogel was an ideal material for a wearable sensor. Therefore, the in situ polymerization of the Py confined to the CNC surface is an effective method for creating PPy@CNC-based conductive filler. The green conductive hydrogel with good conductivity and mechanical performance could be fabricated only by physical cross-linkage after incorporating this filler in PVA. As a result, the PPy@CNC has the potential to be applied to wearable sensors.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
研友_VZG7GZ应助哈喽采纳,获得10
1秒前
奚斌完成签到,获得积分10
1秒前
1秒前
Yxian完成签到,获得积分10
2秒前
2秒前
微风发布了新的文献求助10
2秒前
清爽乐菱应助稳重羽毛采纳,获得10
2秒前
zzaxx123完成签到,获得积分10
3秒前
纪鹏飞完成签到,获得积分10
3秒前
收声完成签到,获得积分10
4秒前
科研通AI5应助感动城采纳,获得10
5秒前
7秒前
7秒前
BING发布了新的文献求助10
7秒前
充电宝应助simon采纳,获得10
7秒前
张铎完成签到,获得积分20
7秒前
7788完成签到,获得积分10
8秒前
8秒前
echo完成签到,获得积分10
8秒前
9秒前
hgf完成签到,获得积分10
9秒前
9秒前
贺可乐完成签到,获得积分10
10秒前
10秒前
Jane完成签到 ,获得积分10
11秒前
充电宝应助微风采纳,获得10
12秒前
澄碧星林发布了新的文献求助10
12秒前
舒心的山晴完成签到,获得积分10
12秒前
12秒前
12秒前
12秒前
TCAcycle完成签到,获得积分10
13秒前
阆州发布了新的文献求助10
13秒前
skill发布了新的文献求助10
13秒前
随心发布了新的文献求助10
13秒前
wanci应助蜡笔小新采纳,获得10
13秒前
汪洋发布了新的文献求助10
13秒前
DD应助谨慎的雨梅采纳,获得10
14秒前
蝌蚪完成签到,获得积分10
15秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 360
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3971078
求助须知:如何正确求助?哪些是违规求助? 3515742
关于积分的说明 11179305
捐赠科研通 3250852
什么是DOI,文献DOI怎么找? 1795501
邀请新用户注册赠送积分活动 875868
科研通“疑难数据库(出版商)”最低求助积分说明 805207