Article

Promotion of the γ-phase of polyamide 6 in its nanocomposite with phosphate glass

  1. A. Rawal1,
  2. X.-W. Fang1,
  3. K. Urman2,
  4. D. Iverson2,
  5. J. U. Otaigbe2,
  6. K. Schmidt-Rohr1,*

Article first published online: 26 MAR 2008

DOI: 10.1002/polb.21418

Issue

Journal of Polymer Science Part B: Polymer Physics

Journal of Polymer Science Part B: Polymer Physics

Volume 46, Issue 9, pages 857–860, 1 May 2008

Additional Information

How to Cite

Rawal, A., Fang, X.-W., Urman, K., Iverson, D., Otaigbe, J. U. and Schmidt-Rohr, K. (2008), Promotion of the γ-phase of polyamide 6 in its nanocomposite with phosphate glass. Journal of Polymer Science Part B: Polymer Physics, 46: 857–860. doi: 10.1002/polb.21418

Author Information

  1. 1

    Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50014

  2. 2

    School of Polymers and High Performance Materials, University of Southern Mississippi, Hattiesburg, Mississippi 39406

*Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50014

Publication History

  1. Issue published online: 18 APR 2008
  2. Article first published online: 26 MAR 2008
  3. Manuscript Accepted: 29 JAN 2008
  4. Manuscript Revised: 28 JAN 2008
  5. Manuscript Received: 11 AUG 2007

Funded by

  • U.S. National Science Foundation. Grant Numbers: CTS-0317646, DMR-0309115
  • Hearin Foundation Fellowship

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Keywords:

  • nanocomposites;
  • NMR;
  • nylon;
  • polyamide-6;
  • γ-phase

Abstract

The effect of tin fluorophosphate-glass (Pglass) nanoparticles on the polyamide-6 (PA6) matrix in Pglass/PA6 hybrids has been investigated by 13C solid-state nuclear magnetic resonance (NMR). The crystallinity determined by direct-polarization 13C NMR combined with longitudinal relaxation-time (T1C) filtering varied between 31 and 44%. T1C-filtered 13C spectra with cross polarization clearly showed resonances of both the α- and γ-crystalline phases of PA6, typically at ratios near 45:55, while the similarly processed neat polymer contained only the α-phase. This suggests that the Pglass promotes the growth of the γ-crystalline phase. © 2008 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 46: 857–860, 2008

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