Open AccessGraphene quantum dots and polypyrrole incorporated polyacrylic acid hydrogels with enhanced conductivity
Author(s) -
Yongqiang Yang,
Qun Wang,
Xiaochen Wu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1699/1/012011
Subject(s) - self healing hydrogels , polyacrylic acid , polypyrrole , materials science , polymerization , chemical engineering , in situ polymerization , swelling , graphene , polymer chemistry , conductivity , porosity , composite number , nanotechnology , composite material , chemistry , polymer , engineering
Highly conductive hydrogels of functional graphene quantum dots (FGQDs) and polypyrrole (PPy) incorporated polyacrylic acid (FGQDs/PAA 20 /PPy) were fabricated through chemical cross-linking and in-situ polymerization. The amount of FGQDs, PPy and cross-linker affecting on the morphology, swelling ratio and electrical properties of FGQDs/PAA 20 /PPy composite hydrogels was investigated. FGQDs produced smaller-sized pores on the structure of PAA hydrogels, but hardly affected their porosity and swelling ratio. A high conductivity of 0.29 S/m was achieved for FGQDs/PAA 20 /PPy hydrogels, which promised high possibility in various fields.