Graphene oxide and hyperbranched polymer-toughened hydrogels with improved absorption properties and durability

Yang Yu, Leandro Carvalho Xavier De Andrade, Liming Fang, Jun Ma, Wenjing (Angela) Zhang, Youhong Tang

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Hyperbranched polymers or/and graphene oxide nanosheets were used to synthesize poly(acrylic acid)-based hybrid hydrogels with high water absorption ability, excellent mechanical properties, and environmental remediation abilities through a novel one-step, cost-effective, and environmentally friendly method. The combination of hyperbranched polymers and graphene oxide nanosheets had synergistic effects on the final hybrid hydrogel, especially on the mechanical behaviors of the hydrogels, with Young's modulus, tensile strength at break and elongation at break increasing by 69, 308, and 848 %, respectively, while the other properties remained similar to those of pure poly(acrylic acid). The proposed enhancement mechanism is also discussed.
Original languageEnglish
JournalJournal of Materials Science
Volume50
Issue number9
Pages (from-to)3457-3466
Number of pages10
ISSN0022-2461
DOIs
Publication statusPublished - 2015

Keywords

  • MATERIALS
  • DOUBLE-NETWORK HYDROGELS
  • HEAVY-METAL IONS
  • ELECTRICAL-CONDUCTIVITY
  • NANOCOMPOSITE HYDROGELS
  • EFFICIENT REMOVAL
  • AQUEOUS-SOLUTIONS
  • NATURAL ZEOLITES
  • ALCOHOL HYDROGEL
  • COPPER REMOVAL
  • WATER
  • Carboxylic acids
  • Cost effectiveness
  • Dendrimers
  • Graphene
  • Mechanical properties
  • Nanosheets
  • Organic acids
  • Polymers
  • Tensile strength
  • Water absorption
  • Absorption abilities
  • Absorption property
  • Elongation at break
  • Enhancement mechanism
  • Environmental remediation
  • Graphene oxide nanosheets
  • Hyperbranched polymers
  • Poly(acrylic acid )
  • Hydrogels
  • HASH(0x3bd0a70)

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