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^(13)C NMR Study of Ethylene/propylene/octene-1 Terpolymers Synthesized with TiCl_4/MgCl_2/ i -Bu_3Al as the Catalyst
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作者 LI San xi ZHOU Zi nan +3 位作者 XIAO Yan wen JING Feng ying PANG De ren huang bao tong 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2000年第3期236-245,共10页
The theory of chemical shift effect of substituent was applied to the assignment of the 13 C NMR spectra of the ethylene/propylene and ethylene/octene 1 copolymers. Using the parameters derived above a... The theory of chemical shift effect of substituent was applied to the assignment of the 13 C NMR spectra of the ethylene/propylene and ethylene/octene 1 copolymers. Using the parameters derived above and the DEPT technique, we then entirely assigned the 13 C NMR spectra of the ethylene/propylene/octene 1 terpolymers synthesized in the presence of the same heterogeneous supported Ziegler Natta catalyst, TiCl 4/MgCl 2/ i Bu 3Al. The present paper also covers the terpolymer composition and the monomer sequence distributions of a series of ethylene/propylene/octene 1 terpolymers. 展开更多
关键词 Chemical shift effect ^(13)C NMR Ethylene/propylene/octene^(-1) terpolymer
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