Accession Number : ADA256408


Title :   Synthesis of a Low Dielectric Perfluoromethylene Linked Cyanate Resin


Descriptive Note : End-of-year rept.


Corporate Author : SOUTHWESTERN UNIV GEORGETOWN TX DEPT OF CHEMISTRY


Personal Author(s) : Snow, Arthur W ; Griffith, James R ; Soulen, Robert L ; Greathouse, Jeffery A ; Lodge, J K


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a256408.pdf


Report Date : 09 Apr 1992


Pagination or Media Count : 10


Abstract : Copper coupling of 1,6-diiodoperfluorohexane and paraiodoanisole gave 1,6-bis (4'-methoxyphenyl) perfluorohexane in good yield. Demethylation with boron tribromide and subsequent reaction with cyanogen bromide gave 1,6-bis (4'-cyanatophenyl) perfluorohexane. Polymerization of the cyanate with copper acetylacetonate provided a good xotherm for the desired trimerization reaction. Measured dielectric permittivity between 2.3 and 2.4. Discussion of attempted preparation of the free phenol perfluoroalkane linked compounds is presented. low dielectric resins, cyanate polymer, fluoropolymer, cyanurate link.


Descriptors :   *DIELECTRIC PROPERTIES , PREPARATION , POLYMERS , COPPER , CYANATES , PLASTICS , PHENOLS , CYANOGEN , COUPLINGS , FLUOROPOLYMERS , BROMIDES , BORON , POLYMERIZATION , DIELECTRICS


Subject Categories : Organic Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE