Covalent functionalization of graphene using polyacryloyl chloride and performance of functionalized graphene-epoxy nanocomposite

Saswata Bose, Arit Das, Sankhadeep Basu, Lawrence T. Drzal

Research output: Contribution to journalArticle

Abstract

A facile approach to functionalize mild acid treated exfoliated graphite nanoparticles (GnPs) was established using poly (acryloyl chloride) (PACl). The reaction between the acyl chloride groups of PACl and the hydroxyl group of mild acid treated GnPs (AGNPs) facilitated the formation of "ester linkage." The remaining -COCl groups of PACl were covalently bonded with epoxy to form the hybrid nanocomposite. Structure of GnPs was not perturbed upon mild acid treatment. Successful functionalization was confirmed via thermal stability and morphological observations. The structural aspects and properties of the nanocomposites were evaluated via spectroscopic measurements, thermo-mechanical analysis, and scanning electron microscopic observations. Improved interfacial adhesion between epoxy and functionalized GnPs was evaluated via SEM. The nanocomposite exhibited an enhancement of mechanical properties at lower filler content (1.0 wt%), which resulted in an increase in flexural strength and flexural modulus by 15 and 22%, respectively.

Original languageEnglish (US)
JournalPolymer Composites
DOIs
StateAccepted/In press - 2017

Profile

Nanocomposites
Graphite
Nanoparticles
Acids
Laryngeal Mucosa
Myosins
Graphene
Bending strength
Fillers
Esters
Thermodynamic stability
Adhesion
Scanning
Mechanical properties
Scanning electron microscopy
Electrons
Carbamoyl-Phosphate Synthase (Ammonia)
Buccal Administration
Aldicarb
Clodronic Acid

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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title = "Covalent functionalization of graphene using polyacryloyl chloride and performance of functionalized graphene-epoxy nanocomposite",
abstract = "A facile approach to functionalize mild acid treated exfoliated graphite nanoparticles (GnPs) was established using poly (acryloyl chloride) (PACl). The reaction between the acyl chloride groups of PACl and the hydroxyl group of mild acid treated GnPs (AGNPs) facilitated the formation of {"}ester linkage.{"} The remaining -COCl groups of PACl were covalently bonded with epoxy to form the hybrid nanocomposite. Structure of GnPs was not perturbed upon mild acid treatment. Successful functionalization was confirmed via thermal stability and morphological observations. The structural aspects and properties of the nanocomposites were evaluated via spectroscopic measurements, thermo-mechanical analysis, and scanning electron microscopic observations. Improved interfacial adhesion between epoxy and functionalized GnPs was evaluated via SEM. The nanocomposite exhibited an enhancement of mechanical properties at lower filler content (1.0 wt%), which resulted in an increase in flexural strength and flexural modulus by 15 and 22%, respectively.",
author = "Saswata Bose and Arit Das and Sankhadeep Basu and Drzal, {Lawrence T.}",
year = "2017",
doi = "10.1002/pc.24318",
journal = "Polymer Composites",
issn = "0272-8397",
publisher = "John Wiley and Sons Inc.",

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T1 - Covalent functionalization of graphene using polyacryloyl chloride and performance of functionalized graphene-epoxy nanocomposite

AU - Bose,Saswata

AU - Das,Arit

AU - Basu,Sankhadeep

AU - Drzal,Lawrence T.

PY - 2017

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N2 - A facile approach to functionalize mild acid treated exfoliated graphite nanoparticles (GnPs) was established using poly (acryloyl chloride) (PACl). The reaction between the acyl chloride groups of PACl and the hydroxyl group of mild acid treated GnPs (AGNPs) facilitated the formation of "ester linkage." The remaining -COCl groups of PACl were covalently bonded with epoxy to form the hybrid nanocomposite. Structure of GnPs was not perturbed upon mild acid treatment. Successful functionalization was confirmed via thermal stability and morphological observations. The structural aspects and properties of the nanocomposites were evaluated via spectroscopic measurements, thermo-mechanical analysis, and scanning electron microscopic observations. Improved interfacial adhesion between epoxy and functionalized GnPs was evaluated via SEM. The nanocomposite exhibited an enhancement of mechanical properties at lower filler content (1.0 wt%), which resulted in an increase in flexural strength and flexural modulus by 15 and 22%, respectively.

AB - A facile approach to functionalize mild acid treated exfoliated graphite nanoparticles (GnPs) was established using poly (acryloyl chloride) (PACl). The reaction between the acyl chloride groups of PACl and the hydroxyl group of mild acid treated GnPs (AGNPs) facilitated the formation of "ester linkage." The remaining -COCl groups of PACl were covalently bonded with epoxy to form the hybrid nanocomposite. Structure of GnPs was not perturbed upon mild acid treatment. Successful functionalization was confirmed via thermal stability and morphological observations. The structural aspects and properties of the nanocomposites were evaluated via spectroscopic measurements, thermo-mechanical analysis, and scanning electron microscopic observations. Improved interfacial adhesion between epoxy and functionalized GnPs was evaluated via SEM. The nanocomposite exhibited an enhancement of mechanical properties at lower filler content (1.0 wt%), which resulted in an increase in flexural strength and flexural modulus by 15 and 22%, respectively.

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