Citation:
Wu Ya'nan, Jing Xiabin, Hu Huizhen, Zhang Wanjun. IR STUDY ON THE RELATION OF MICRO-STRUCTURES AND MOLECULAR WEIGHT OF Ni-CATALYSDE POLYBUTADIENE[J]. Chinese Journal of Applied Chemistry,
;1987, 4(3): 70-72.
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The miero-struetures of the fraetions and the gel of Ni-catalysde poly butadiene Were studied by FTIR. It was shown that the lower moteeular weight fraction has higher trans-1,4 and vinyl-1,2 contents and the that with higher moleeular weight has higher cis-1,4 content,indieating that more trans-1,4 or vinyl units are formed at the earlier perind of the chain propagation. The trans-1,4 and vinyl-1,2 contents in the gel are more than those in the sol of the same sampla. It is deduced that there is more structural similarity between the gel and the lower moleeular weight fraetions.
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