Accession Number : AD0781578

Title :   Evaluation of Poly(Fluoroalkoxyphosphazene) Elastomers and Plastics.

Descriptive Note : Final rept., 3 May-31 Oct 73,


Personal Author(s) : Reynard,Kennard A. ; Gerber,Arthur H. ; Sicka,Richard W. ; Vicic,John C. ; Rose,Selwyn H.

Report Date : MAR 1974

Pagination or Media Count : 43

Abstract : The successful preparation of ((CF3CH2O)2PN)n, ((CF3CH2O)2PN-(2-CH3O-4-C3H5C6H3O)xPN)n, and ((C3F7CH2O)2PN)n plastics and ((CF3CH2O)2PN-(HCF2C3F6CH2O)2PN)n, ((CF3CH2O)2PN-(HCF2C3F6CH2O)2PN-(2-CH3O-4-C3H5C6H3O)xPN)n, ((HCF2CF2CF2O)2PN-(HCF2C3F6CH20)2PN)n elastomers are described. Compounding studies of ((CF3CH2O)2PN-(HCF2C3F6CH2O)2PN)n copolymers and terpolymers demonstrated that good to excellent tensile strengths, good elongation, and compression set values could be obtained. The (2-CH3O-4-C3H5C6H3O) group was introduced into several polymers in an effort to achieve better vulcanizate properties. Qualitative studies of several poly(fluoroalkoxyphosphazene) plastics to determine processability, mechanical properties, and thermal resistance are described. Weatherometer aging of a compounded vulcanizate had little or no effect on physical properties after 120 hours. (Modified author abstract)

Descriptors :   *Elastomers, *Inorganic polymers, *Substitution reactions, Phosphonitrile chlorides, Plastics, Phosphazene, Mechanical properties, Synthesis(Chemistry), Tensile properties, Fluorine compounds, Vulcanizates, Performance(Engineering), Aging(Materials), Chemical attack(Degradation), Resistance, Solubility, Polymerization, Thermal stability

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE