Detailed 13C NMR chemical shift rules are devised for ethylene and propylene polymers and for low‐molecular‐weight analogs. The rules are additive and account for substituent effects as well as for configurational sequences. The agreement between the observed and the predicted shifts is excellent. A computer program has been written to obtain the predicted shifts quickly and with minimum effort.
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Cheng et al. (1987) studied this question.
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