شماره ركورد كنفرانس :
5536
عنوان مقاله :
Ethylene-Propylene copolymerization using Et(Ind)2ZrCl2 metallocene catalyst: Synthesis and Microstructure Analysis
پديدآورندگان :
Dashti Arezoo Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran , Ahmadjo Saeid Engineering Department, Catalyst Group, Iran Polymer and Petrochemical Institute, Tehran, Iran , Mortazavi Seyed Mohammad Mahdi Engineering Department, Catalyst Group, Iran Polymer and Petrochemical Institute, Tehran, Iran , Ahmadi Mostafa Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
كليدواژه :
Polymer Synthesis and Polymerization , Polyolefin , Ethylene , Propylene copolymer , Metallocene Catalyst , Microstructural analysis.
عنوان كنفرانس :
پانزدهمين همايش بين المللي علوم و فناوري پليمر
چكيده فارسي :
Copolymerization of ethylene (E) and propylene (P) was carried out using Et(Ind)2ZrCl2, an industrially relevant metallocene catalyst, and Modified Methylaluminoxane (MMAO) as a co-catalyst under different conditions of varied feed ratios of monomers, co-catalyst/catalyst ratios, polymerization temperatures, and pressures. This bridged metallocene catalyst showed good propylene incorporation and with increasing total pressure and P/E ratio, P content can be increased. 60 °C is the optimum temperature for high activity and molecular weight of copolymers. At a higher P/E ratio, more alternative monomer segments in chain microstructure have appeared.
