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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. shu

IR STUDY ON THE RELATION OF MICRO-STRUCTURES AND MOLECULAR WEIGHT OF Ni-CATALYSDE POLYBUTADIENE

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Corresponding author: Wu Ya'nan,
Received Date: 20 May 1986
Available Online: 20 October 1986

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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