Citation: ZHANG Zheyen, ZHOU Zinan, MA Huimin. 13C-NMR STUDY ON THE EQUIBINARY (cis-1,4;1,2) POLYBUTADIENE POLYMERIZED WITH IRON CATALYST[J]. Chinese Journal of Polymer Science, ;1983, 1(1): 92-100. shu

13C-NMR STUDY ON THE EQUIBINARY (cis-1,4;1,2) POLYBUTADIENE POLYMERIZED WITH IRON CATALYST

ZHANG Zheyen ^{*，周子南，马惠敏} ,
ZHOU Zinan ,
MA Huimin

Received Date: 5 December 1982

The (cis-1,4 and 1,2) polybutadiene polymerized with iron catalyst was investigated by 13C-NMR. Assignments have been made on the spectra for all peaks of the aliphatic and olefinic carbons using chemical shift corrective terms together with Furukawa parameters. The relative intensities of peaks were calculated from the Bernoulli distribution of cis-1,4 and 1,2 units.Quantification of cis-1,4 and 1,2 contents, sequence distribution, alternation pattern of cis-1,4 and 1,2 units, and the chain propagation mechanism were discussed as a result of the detailed study of the spectra.
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