Description: NRL has developed a polymer comprising fluoromethylene segments with triazine crosslinks that yield the desirable electrical and physical properties of PTFE (i.e., Teflon ®) with the facile processing and adhesion characteristics of a thermoset resin.

Advantages/Features Include:

  • Very low permittivity (dielectric constant = 2.28 @ 1 GHz)
  • Extremely low moisture absorption (0.2%) which translates to lower operational dielectric constants (wet dielectric constant = 2.4 @ 1 GHz)
  • Improved adhesion characteristics compared to other fluoropolymers due to the triazine functionality

Applications Include:

  • Microelectronics, e.g., circuit board resins, packaging films, and inter-level dielectrics.
  • Radomes
  • Sensor apertures involving a high degree of electromagnetic transmission

References:

  • "Physical Properties and Microelectronic Applications of Low Permittivity Fluoromethylene Cyanate Ester Resins," Journal of Vacuum Science and Technology B 15(2) (1997) 259-266.
  • "Fluoromethylene Cyanate Ester Resins. Synthesis, Characterization, and Fluoromethylene Chain Length Effects," Macromolecules 30 (1997) 394-405.
  • "NCOCH2(CF2)6CH2OCN Cyanate Ester Resin. A Detailed Study," Journal of Polymer Science: Part A: Polymer Chemistry 37 (1999) 135-150.

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