Free Radical Telomerization by Charles M. Starks

By Charles M. Starks

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52. A. D. Jenkins, Trans. Faraday Soc. 54, 1885 and 1895 (1958). 53. A. S. Hoffman and R. Bacskai, in " С о р о ^ т е п г а ! ^ " (G. E. ), p. 372 et seq. Wiley (Interscience), New York, 1964. 54. O. A. Blum, A. L. Dittman, and J. M. S. Patent 2,694,701 (1954). 55. C. H. Bamford, W. G. Barb, A. D. Jenkins, and P. F. Onyon, "The Kinetics of Vinyl Polymerization by Radical Mechanisms," Academic Press (Butterworths), New York, 1958. 56. E. S. Huyser, Advan. Free-Radical Chem. 1, 77 (1965). 57. C. H.

66. D. S. Tsiklis and L. A. Rott, Russ. Chem. Rev. 36, 351 (1967). 67. R. C. Reid and T. K. " McGraw-Hill, New York, 1958. 68. R. R. Spear, R. L. -C. Chao, Ind. Eng. , Fundam. 10, 588 (1971). 69. T. Asahara and M. C. Chou, Bull. Chem. Soc. Jap. 42, 1373 (1969). 70. C. A. Barson, R. R. Mather, and J. C. Robb, Trans. Faraday Soc. 66, 2585 (1970). Chapter j Reactivity in Free Radical Telomerization The feature which distinguishes good telomerization systems from poor ones is the proper balance between rates of chain growth and chain transfer.

Telomerization Kinetics where M 0 is the monomer concentration at t = 0. 57) where / is the fraction of monomer converted to telomer after reaction time t. After infinite time -2k. 58) ln(l - / « UVo (W This equation gives the limiting conversion attainable with an initial concentration [I] 0 , of initiator. Alternatively, Eq. 58) may be used to correlate experimental data from runs with different levels of added initiator. 303 x (/cj/ct)1/2, as illustrated in Fig. 5 (54). 0 Fig. 5. Monomer conversion as a function of added initiator concentration in ethylene telomerization with CCl 3 COCl (54).

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