Title of article :
Long-chain branching in PE from Cr/aluminophosphate catalysts Original Research Article
Author/Authors :
Paul J. DesLauriers، نويسنده , , Chung-Tso Chang، نويسنده , , Youlu Yu، نويسنده , , David L. Rohlfing، نويسنده , , Max P. McDaniel، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Abstract :
Phillips Cr/silica catalysts have long been known to produce long-chain branching (LCB) in polyethylene (PE) through macromer incorporation. In fact, the manipulation of LCB levels through catalyst variables is a very useful way of controlling properties and molding behavior in commercial PE resins. Using alumina as the support, instead of silica, is one way of achieving very low levels of LCB.
Keywords :
Chromium catalyst , Polymerization catalyst , ethylene polymerization , Phillips catalyst , Short-chain branching , Cross-insertion , Inter-molecular mechanism , Long-chain branching , Polyethylene , Intra-molecular mechanis
Journal title :
Applied Catalysis A:General
Journal title :
Applied Catalysis A:General
