%0 Journal Article
%T A NEW PEAK (T4) OF THE 13C-NMR SPECTRUM OF POLYBUTADIENE<br>聚丁二烯13C-NMR谱图中一个新的共振吸收峰(T4)
%A Zhou Zinan
%A Xie De-min
%A Zhang Jian-guo
%A Wu Qin-yi
%A Feng Zhi-liu
%A <br>周子南
%A 谢德民
%A 张建国
%A 吴钦义
%A 冯之榴
%J 高分子学报
%D 1982
%I 
%X A new peak at 39.0 ppm in the 13C-NMR spectrum of polybutadiene (PBD) was discovered. This peak is assigned to the fouth trans peak (T4) of trans 1, 4-sequence marked with an asterisk as shown in Fig. 3 in the text.The occurrence of T4 carbon nuclei is strongly affected by their neighboring 1, 2-units. So long as both contents of trans 1, 4- and 1, 2-units reach their proper amount, the peak (T4) will appear in the 13C-NME spectrum of PBD.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=42A019F3E8B02B4A&yid=3F3D540C9B7906DE&iid=E158A972A605785F&sid=AA5FB09E1F81059E&eid=EC34D52BE81085CE&journal_id=1000-3304&journal_name=高分子学报&referenced_num=0&reference_num=0