Abstract
The basic kinetic parameters of thermal polymerization of hexafluoropropylene, namely, general rate constants, degree of polymerization, and their temperature and pressure dependences in the range of 230–290 °C and 2–12 kbar (200–1200 MPa) were determined. The activation energy (E act = 132±4 kJ mol−1) and activation volume (ΔV 0 ≠ = −27±1 cm3 mol−1) were calculated. The activation energy of thermal initiation of polymerization was estimated. The reaction scheme based on the assumption about a biradical mechanism of polymerization initiation was proposed.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1199–1205, June, 2010.
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Zharov, A.A., Guzyaeva, I.A. Kinetics and mechanism of thermal polymerization of hexafluoropropylene under high pressures. Russ Chem Bull 59, 1225–1231 (2010). https://doi.org/10.1007/s11172-010-0225-x
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DOI: https://doi.org/10.1007/s11172-010-0225-x