NEW LIMITATION CHANGE TO Approved for public release , distribution unlimited FROM Distribution : Further dissemination only as directed by Elastomers and Coatings

This explozatory c, mpounding development progrLm was conducted for the purpose of obtaining suitable modif: rs for the crosslinkin, and reinforcing of triazine elvstomers. The reinforcing effects of a v.riety of finely diviIed materials are compared. Data are presented showir.g th Affec~tofonnh' 'trationofthP asbestos ., . fill-r hbuhlhd. results) on the physical properties and thermal stabilitiis of a poly (perfluoropropylene (perfluoro 1ropyl) triazine] gum and a blend comprised of equal parts of the gum aad a poly [perfluoropropylene (per'luoropropyl) triazine] reE-in. Several organonetallic and organic comvounds were found to be effective cro.slinking a•nr.i for nyly [rnprfbn•nnt-•h•tehylen (perfluoropropyl) triazi,•e] and n-perfluoropropylene cyanide modified poly [perfluoro-. octamethylena (perfluori-propyl) triazine] elastome s. The physical p-opertius and thermal resistance of chemically vulcanized gums and asbestos reinforced vulcanizates based on the n-perfluoropropylene cy, aidQ modified and unmodified poly [perfluorooctamethyl, ne (perfluoropropyl) friazine] gums are discussed in detail. This abstract may be further distributed by any holder _n.l with specific prior approval of the Elastomers and Coatings Branch, (MANE), Nonmetallic Materials Division, Air Force Materials Laboratory, Wright-Patterson Air Force Base, 45433.

[1]  Seibert Q. Duntley,et al.  The Optical Properties of Diffusing Materials , 1942 .

[2]  Raymond B. Cattell,et al.  The Description of Personality: Principles and Findings in a Factor Analysis , 1945 .

[3]  Homer G. Rosenberger,et al.  The use of coccidioidin. , 1948, American review of tuberculosis.

[4]  D. W. Fiske.  Consistency of the factorial structures of personality ratings from different sour sources. , 1949, Journal of abnormal psychology.

[5]  R. Bishop,et al.  Stress Waves in Solids , 1954, Nature.

[6]  E. P. Lowe,et al.  Preliminary studies on artificial active immunization of guinea pigs against respiratory challenge with Coccidioides immitis. , 1954, American review of tuberculosis.

[7]  S. Boyden.  The Immunological Response to Antigens of the Tubercle Bacillus , 1958 .

[8]  J. O. Hirschfelder,et al.  Generalized Equation of State for Gases and Liquids , 1958 .

[9]  C. Bonilla,et al.  VAPOR PRESSURE OF ALKALI METALS. RUBIDIUM, CESIUM, AND SODIUM-POTASSIUM ALLOY (NaK) UP TO 100 PSI , 1962 .

[10]  W. Spector,et al.  Histology of the tuberculin reaction in guinea-pigs. , 1963, The Journal of pathology and bacteriology.

[11]  Andrei Nikolaevich Nesmeianov,et al.  Vapor pressure of the chemical elements , 1963 .

[12]  Y. Kong,et al.  Immunogenic properties of nondisrupted and disrupted spherules of Coccidioides immitis in mice. , 1963, Sabouraudia.

[13]  E. P. Lowe,et al.  IMMUNIZATION AGAINST COCCIDIOIDOMYCOSIS BY KILLED CELL AND CELL FRACTION VACCINES , 1964 .

[14]  E. P. Lowe,et al.  COCCIDIOIDOMYCOSIS: STUDIES OF CANINE VACCINATION AND THERAPY. , 1965, The Journal of infectious diseases.

[15]  I. G. Dillon,et al.  MEASUREMENT OF DENSITIES AND ESTIMATION OF CRITICAL PROPERTIES OF THE ALKALI METALS , 1966 .

[16]  J. Sinski.  Coccidioidin sensitivity in control, immunized and infected guinea pigs , 1965, Mycopathologia et mycologia applicata.