%0 Journal Article
%T STUDY ON SEQUENCE DISTRIBUTION OF 3,4-POLYISOPRENE BY C-13 NMR METHOD<br>13C-NMR研究3,4-聚异戊二烯的序列分布
%A XIE De-min
%A SUN Qing
%A <br>谢德民
%A 孙菁
%J 高分子学报
%D 1988
%I 
%X The microstructure and sequence distribution of 3,4-polyisoprene obtained with Fe(acac)3-phen-AlEt3 catalyst have been examined by C-13 NMR spectroscopy. The results show that 3,4- cis-1,4 and trans-1,4 contents calculated respectively from aliphatic and olefinic carbons are in agreement on the value and it was found that monomer units of 3,4-polyisoprene exist in a small amount of "head-head" and "tail-tail" structure in addition to "head-tail" linkages.
%K 3
%K 4-Polyisoprene
%K Sequence distribution
%K C-13 NMR spectroscopy
%K Diene polymerization<br>3
%K 4-聚异戊二烯
%K 序列分布
%K ~(13)C-NMR谱
%K 双烯聚合
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=385A264EDC3BA9BD&yid=0702FE8EC3581E51&iid=CA4FD0336C81A37A&sid=CA4FD0336C81A37A&eid=B31275AF3241DB2D&journal_id=1000-3304&journal_name=高分子学报&referenced_num=0&reference_num=0