Summary
The13C NMR spectral assignments for ethylene/1-hexene copolymers are reexamined. Revised assignments are obtained for the 34–36 ppm region. A computational scheme is devised to extract information on composition and sequence distribution from the spectral intensities. A computerized analytical approach that fits the observed intensities to statistical models is also available.
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References
B. Florin-Michel, M.-F. Llauro, R. Spitz, and Q. T. Pham,Eur. Polym. J., 15, 277 (1979).
E. T. Hsieh and J. C. Randall,Macromolecules, 15, 1402 (1982).
K. Soga, T. Uozumi, and J. R. Park,Macromol. Chem., 191, 100 (1990).
M. De Pooter, et al.,J. Appl. Polym. Sci., 42, 399 (1991).
C. J. Carman, R. A. Harrington, and C. E. Wilkes,Macromolecules, 10, 773 (1977).
D. M. Grant and E. G. Paul,J. Am. Chem. Soc., 86, 2984 (1964).
L. P. Lindeman and J. Q. Adams,Anal. Chem., 43, 1245 (1971).
C. J. Carman, A. R. Tarpley, and J. H. Goldstein,Macromolecules, 6, 719 (1973).
H. N. Cheng and M. A. Bennett,Anal. Chim. Acta, 242, 43 (1991), and references cited therein.
G. J. Ray, P. E. Johnson, and J. R. Knox,Macromolecules, 10, 773 (1977).
J. C. Randall,Macromolecules, 11, 33 (1978).
H. N. Cheng,Anal. Chem. 54, 1828 (1982).
G. J. Ray, J. Spanswick, J. R. Knox, and C. Serres,Macromolecules, 14, 1323 (1981).
E. T. Hsieh and J. C. Randall,Macromolecules, 15, 353 (1982).
H. N. Cheng,Macromolecules, submitted for publication.
H. N. Cheng,Polym. Comm., 25, 99 (1984).
K. Kimura, S. Yuasa, and Y. Maru,Polymer, 25, 441 (1984).
H. N. Cheng,J. Chem. Inf. Computer Sci., 17, 8 (1987).
H. N. Cheng,J. Appl. Polym. Sci.: Appl. Polym. Symp., 43, 129 (1989).
H. N. Cheng,J. Appl. Polym. Sci., 35, 1639 (1988).
H. N. Cheng,Am. Chem. Soc. Symp. Ser., 404, 174 (1989).
H. N. Cheng,Polym. Bull., 23, 589 (1990).
H. N. Cheng and M. Kakugo,Macromolecules, in press.
H. N. Cheng, manuscript in preparation.
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Cheng, H.N. Comonomer sequence distribution in ethylene/1-hexene copolymers. Polymer Bulletin 26, 325–332 (1991). https://doi.org/10.1007/BF00587977
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DOI: https://doi.org/10.1007/BF00587977