Synthesis of nickelocene containing polyimides with low-dielectric constants

KÖYTEPE S., ADIGÜZEL H. İ., SEÇKİN T.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.470, ss.347-353, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 470
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.jallcom.2008.02.085
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.347-353
  • İnönü Üniversitesi Adresli: Evet

Özet

Polyimides embedding the nickelocene unit were prepared by in situ curing of poly(amic acid) macromolecules with nickelocene, for the molecular-level design of low-dielectric constant (IOW-kappa) materials. The effects of nickelocene on dielectric properties of polyimide are investigated in detail in this study. Nickelocene containing polyimides exhibit a number of desirable properties including low-water absorption and admirable thermal stability. Systematic studies demonstrate that proper insertion of nickelocene into a polyimide backbone can give rise to a reduction in the material's dielectric constant. All composites were subjected to DSC measurements for the purpose of examining microscopic miscibility. DSC thermograms of all composites showed only one T-g from all composition. (C) 2008 Elsevier B.V. All rights reserved.