%0 Journal Article
%T CHARACTERIZATION OF NETWORKS STRUCTURE AND MECHANICAL PROPERTIES OF RADIATION CROSSLINKED CIS-1,4-POLYBUTADIENE<br>辐射交联顺-1,4-聚丁二烯的网络结构特性和力学性能
%A ZHANG Yan-shou
%A LUO Yun-xia
%A ZHANG Wan-jun
%A WANG Li-xia
%A <br>张延寿
%A 罗云霞
%A 章婉君
%A 王丽霞
%J 高分子学报
%D 1989
%I 
%X The subject of whether or not physical entanglement networks contribute to the elastic modulus of polymer is still at issue. According to the Flory's swelling theory and theory of rubber elasticity, the characterization of chemical crosslinking networks and physical entanglement networks of radiation crosslinked cis-1, 4-polybutadiene(cis-PB) as well as influence of ne tworks structure on the mechnical properties were investigated in this paper. Results display that the density of physical entanglement networks is much higher than that of chemical crosslinking networks. With the increasing of radiation dose, the density of chemical crosslinking is increased, but the number of entanglement is decreased. The relations of crosslinking/ entanglement density and constants C1 and C2 of Mooney-Rivlin equation were explored. Results show that the constant C1 is attributed to chemical crosslinking networks; while the constant C2 is attributed to physical entanglement networks. The physical entanglement networks mainly contribute to the initial elastic modulus Go of crosslinked polymer for small strain; while the chemical crosslinking networks chiefly contribute to the break strength of crosslinked polymer for the large strain.
%K polybutadiene
%K radiation crosslinking
%K physical entanglement
%K networks structure
%K mechanical properties<br>聚丁二烯
%K 辐射交联
%K 网络结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=C71650CF9C10407B31256EEBF19C738E&yid=1833A6AA51F779C1&iid=E158A972A605785F&sid=44FDB9366EDDFA2B&eid=A22854835F81B3F8&journal_id=1000-3304&journal_name=高分子学报&referenced_num=0&reference_num=0