报告题目：Olefin Polymers: From Commodity Polymers to Advanced Materials

时间：11月21日（星期六），14:30 – 16:30

地点：907-1101

报告人: 陈忠仁教授

            国家“千人计划”学者、包玉刚讲座教授               

            宁波大学高分子科学与工程学系（创建）主任

报告内容:

Olefin polymers such as polyethylene are major commodity polymers due to the highly productive catalysts and readily available monomers. However, there are technical challenges to make polyolefin advanced materials, such as the incorporation of functional monomers, the elimination of chain entanglement, and the compatiblization of polyolefin alloys.

Chain entanglement is the unique feature that differentiates polymers from small molecules. The chain entanglement could be so severe, in case for ultra-high molecular weight polyethylene (UHMWPE) when the molecular weight reaches a few millions, that the melt processing becomes impossible. Inspired by the silk-worm that makes perfect cocoon without entangled thread, we have prepared “un-entangled” UHMWPE, revealed the time scale of entanglement formation at melt, and furthermore, demonstrated that a small portion of un-entangled UHMWPE would greatly improve the property and foaming process of commodity polyethylene.  

陈忠仁教授简介：

陈忠仁教授在高分子领域取得了系列基础科学与工业研发成果，如以第一作者在Science杂志以封面主题发表的研究论文，在纳米材料宏观有序加工领域产生了重要影响；在Jacobson-Stockmayer方程中引入环应力的定量模型已成为复杂天然产物、药物乃至燃料抗爆助剂合成的理论指导；在发展软材料开裂磨损理论基础上，成功主持了新一代高性能橡胶材料的工业合成与应用，产生了巨大的经济与社会效益。