Synthesis and Characterization of Poly(Phenylene Sulfide)-Grafted Carbon Nanotube Nanocomposites

Abstract

Poly(phenylene sulfide) (PPS) is a semicrystalline engineering thermoplastic with outstanding mechanical and thermal properties, good chemical and flame resistance, as well as easy processability, widely used in the electronics, automotive, aeronautic, and chemical industries. To further extend its structural applications, different types of fillers such as carbon nanotubes (CNTs) have been incorporated in this polymer. However, the direct integration of CNTs leads to nanocomposites with poor mechanical performance. An alternative approach is the chemical modification of PPS via nitration and amination reactions. The modified polymers maintain the exceptional properties of the parent PPS and simultaneously display higher hydrophilicity and a number of reactive groups capable of interacting with functionalized CNTs. Thus, an aminated derivative (PPS-NH2) has been covalently anchored onto the surface of epoxy and acid-functionalized CNTs in a one-pot process. The resulting PPS-NH2-grafted-CNT nanocomposites have been extensively characterized through different techniques to obtain information about the extent of the grafting reactions, their morphology, thermal stability, crystallization behavior, and mechanical and electrical properties, and the results are compared with those attained in nanocomposites prepared by direct reinforcement. The formation of covalent linkages at the polymer-nanotube interface enables improved CNT dispersion, facilitating the stress transfer and enhancing the thermal stability and electrical conductivity of the composites. The results herein offer useful insights into the development of proper functionalization routes and grafting approaches for enhancing the properties of thermoplastic/CNT nanocomposites.

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Title
Synthesis and Characterization of Poly(Phenylene Sulfide)-Grafted Carbon Nanotube Nanocomposites
Book Title
Handbook of Polymer Nanocomposites. Processing, Performance and Application
Book DOI
10.1007/978-3-642-45229-1
Chapter DOI
10.1007/978-3-642-45229-1_29
Part of
Volume
Editors
  • Kamal K. Kar Send Email (1)
  • Jitendra K. Pandey Send Email (2)
  • Sravendra Rana Send Email (3)
  • Editor Affiliation
  • 1 Department of Mechanical Engineering and Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur, India
  • 2 University of Petroleum and Energy Studies (UPES), Dehradun, India
  • 3 School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
  • Authors
  • Ana M. Díez-Pascual Send Email (4)
  • Mohammed Naffakh Send Email (5)
  • Author Affiliation
  • 4 Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva, 3, 28006, Madrid, Spain
  • 5 Departamento de Ingeniería y Ciencia de Los Materiales, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, José Gutiérrez Abascal 2, 28006, Madrid, Spain
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