Tailoring polyacrylonitrile interfacial morphological structure by crystallization in the presence of single-wall carbon nanotubes

Yiying Zhang, Kenan Song, Jiangsha Meng, Marilyn L. Minus

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

In order to improve stress transfer between polymer matrixes and nanofillers, controlling the structure development in the interphase region during composite processing is a necessity. For polyacrylonitrile (PAN)/single-wall carbon nanotubes (SWNT) composites, the formation of the PAN interphase in the presence of the SWNT as a function of processing conditions is studied. Under these conditions, three distinct interfacial coating morphologies of PAN are observed on SWNT. In the semidilute polymer concentration regime subjected to shearing, PAN extended-chain tubular coatings are formed on SWNT. Dilute PAN/SWNT quiescent solutions subjected to cooling yields hybrid periodic shish-kebab structures (first observation for PAN polymer), and dilute PAN/SWNT quiescent solutions subjected to rapid cooling results in the formation of an irregular PAN crystalline coating on the SWNT.

Original languageEnglish (US)
Pages (from-to)807-814
Number of pages8
JournalACS Applied Materials and Interfaces
Volume5
Issue number3
DOIs
StatePublished - Feb 13 2013
Externally publishedYes

Fingerprint

Carbon Nanotubes
Polyacrylonitriles
Crystallization
Carbon nanotubes
Coatings
Polymers
Cooling
polyacrylonitrile
Composite materials
Processing
Polymer matrix
Shearing
Crystalline materials

Keywords

  • crystallization
  • extended-chain
  • interphase
  • polyacrylonitrile
  • shish-kebab
  • SWNT

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Tailoring polyacrylonitrile interfacial morphological structure by crystallization in the presence of single-wall carbon nanotubes. / Zhang, Yiying; Song, Kenan; Meng, Jiangsha; Minus, Marilyn L.

In: ACS Applied Materials and Interfaces, Vol. 5, No. 3, 13.02.2013, p. 807-814.

Research output: Contribution to journalArticle

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