Reference

Study of the pyrolysis of trifluorobromomethane (Khladon 13V1) in various media

Study of the pyrolysis of trifluorobromomethane (Khladon 13V1) in various media. Kulakov, V. G.; Poloznov, N. M.; Baratov, A. N. (Vses. Nauchno-Issled. Inst. Protivopozharnoi Oborony, Moscow, USSR). Probl. Goreniya Tusheniya Pozharov, Mater. Vses. Nauchno-Prakt. Konf., 4th, Meeting Date 1975, 32-3. Edited by: Ryabov, I. V. Vses. Nauchno-Issled. Inst. Protivopozharnoi Oborony: Moscow, USSR. (Russian) 1976. CODEN: 36RAAY. DOCUMENT TYPE: Conference CA Section: 50 (Propellants and Explosives) CBrF3 (Khladon 13B1) [75-63-8] vapors were introduced in amts. of 3-30% into a flow of O, air, or He at atm. pressure and 400-900°. The flow velocity of the gas mixt. was 5-400 cm3/min in a quartz tube, 77 mm long and 8 mm in diam. The contact time with the hot surface of the tube was 1-10 s. The decompn. of CBrF3 began at 450° and was complete at 900°. In O and air atms., the main decompn. products were Br, CO2, CF4 [75-73-0], and small amts. of CO; in inert atm., Br and C2F6 [76-16-4].

Plasma polymerization of hexafluoroethane as CAP mechanism model system for polymer formation

Plasma polymerization of hexafluoroethane as CAP mechanism model system for polymer formation. Masuoka, Toshio; Yasuda, Hirotsugu; Hirasa, Okihiko (Res. Inst. Polym. Text., Yatabe 305, Japan). Kenkyu Hokoku - Sen'i Kobunshi Zairyo Kenkyusho, (132), 13-18 (Japanese) 1982. CODEN: SKZHA8. ISSN: 0371-0807. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 42 Hexafluoroethane (I) [76-16-4] plasma polymn. in the presence of H2 was investigated as a model system of the CAP (competitive reactions between ablation and polymn.) mechanism for polymer formation onto solid substrates. Acceleration effect of polymer deposition rate (DR) with increase of H2/I ratio was obsd. in a magnetron auto-frequency discharge system and a tubular type of radio-frequency discharge system. However, at H2/I ratio >1.0, DR decreased. This could be explained by formation of extremely F-poor polymers according to ESCA results of the polymers. The DR increase with H2 addn. might be attributed to HF formation. DR distribution in the reactors in relation to wattage, local plasma intensity, and reactor design was also discussed.