%0 Journal Article %T Rheological Behaviour for Polymer Melts and Concentrated Solutions Part Ⅰ:A New Multiple Reptation Model to Predict the Nonlinear Visco-elasticity with Nagai Chain Constraints in Entangled Polymer Melts %J 材料科学技术学报 %D 1995 %I %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=2D2E8001552BB6D9&yid=BBCD5003575B2B5F&vid=708DD6B15D2464E8&iid=CA4FD0336C81A37A&sid=23CCDDCD68FFCC2F&eid=340AC2BF8E7AB4FD&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=0