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Original Articles

Micro-Structure and Fracture Behavior of High-Melt-Strength PPs Prepared by Reactive Extrusion

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Pages 48-59 | Received 05 Sep 2010, Accepted 29 Dec 2010, Published online: 14 Dec 2011

References

  • Wang , X. C. , Tzoganakis , C. and Rempel , G. L. 1996 . Chemical modification of polypropylene with peroxide/pentaerythritol triacrylate by reactive extrusion . J. Appl. Polym. Sci. , 61 : 1395 – 1404 .
  • Jorgensen , J. K. , Redford , K. R. , Ommundsen , E. and Stori , A. 2007 . Molecular structure and shear rheology of long chain branched polypropylene formed by light cross-linking of a linear precursor with 1,3-benzenedisulfonyl azide . J. Appl. Polym. Sci. , 106 : 950 – 960 .
  • Kim , J. Y. , Seo , E. S. , Park , D. S. , Park , K. M. , Kang , S. W. , Lee , C. H. and Kim , S. H. 2003 . Chemical modification of isotactic polypropylene by melt blending . Fiber. Polym. , 4 : 107 – 113 .
  • Auhl , D. , Stange , J. and Munstedt , H. 2004 . Long-chain branched polypropylenes by electron beam irradiation and their rheological properties . Macromolecules , 37 : 9465 – 9472 .
  • Schulze , D. , Trinkle , S. , Mulhaupt , R. and Friedrich , C. 2003 . Rheological evidence of modifications of polypropylene by β-irradiation . Rheol. Acta , 42 : 251 – 258 .
  • Guillet , J. E. , Combs , R. L. , Slonaker , D. F. , Weemes , D. A. and Coover , H. W. JR . 1965 . Effects of molecular weight distribution and branching on rheological parameters of polyethylene melts . J. Appl. Polym. Sci. , 8 : 767 – 776 .
  • Tian , J. H. , Yu , W. and Zhou , C. X. 2006 . The preparation and rheology characterization of long chain branching polypropylene . Polymer , 47 : 7962 – 7969 .
  • Janzen , J. and Colby , R. H. 1999 . Diagnosing long-chain branching in polyethylenes . J. Molecul. Struct. , 485–486 : 569 – 584 .
  • Tsenoglou , C. J. and Gotsis , A. D. 2001 . Rheological characterization of long chain branching in a melt of evolving molecular architecture . Macromolecules , 34 : 4685 – 4687 .
  • Shroff , R. N. and Mavridis , H. 2001 . Assessment of NMR and rheology for the characterization of LCB in essentially linear polyethylenes . Macromolecules , 34 : 7362 – 7367 .
  • Nam , G. J. , Yoo , J. H. and Lee , J. W. 2005 . Effect of long-chain branches of polypropylene on rheological properties and foam-extrusion performances . J. Appl. Polym. Sci. , 96 : 1793 – 1800 .
  • Shan , C. L.P. , Soares , J. B.P. and Penlidis , A. 2003 . HDPE/LLDPE reactor blends with bimodal microstructures – part II: Rheological properties . Polymer , 44 : 177 – 185 .
  • Tian , J. H. , Yu , W. and Zhou , C. X. 2007 . Crystallization behaviors of linear and long chain branched polypropylene . J. Appl. Polym. Sci. , 104 : 3592 – 3600 .
  • Hashemi , S. 1997 . Fracture toughness evaluation of ductile polymeric films . J. Mater. Sci. , 32 : 1563 – 1573 .
  • Poon , W. K.Y. , Ching , E. C.Y. , Cheng , C. Y. and Li , R. K. 2001 . Measurement of plane stress essential work of fracture (EWF) for polymer films: Effects of gripping and notching methodology . Polym. Test. , 20 : 395 – 401 .
  • Karger-Kocsis , J. , Czigany , T. and Moskala , E. J. 1998 . Deformation rate dependence of the essential and non-essential work of fracture parameters in an amorphous copolyester . Polymer , 39 : 3939 – 3944 .
  • Wong, Janet , S. S. , Ferrer-Balas , D. , Li , R. K.Y. , Mai , Y.-W. , Maspoch , M. L. and Sue , H.-J. 2003 . On tearing of ductile polymer films using the essential work of fracture (EWF) method . Acta. Mater. , 51 : 4929 – 4938 .
  • Gong , G. , Xie , B. H. , Yang , M. B. , Yang , W. , Zhang , W. Q. and Zhao , M. 2007 . Mechanical properties and fracture behavior of injection and compression molded polypropylene/coal gangue powder composites with and without a polymeric coupling agent . Composite A , 38 : 1683 – 1693 .
  • Karger-Kocsis , J. and Czigany , T. 1996 . On the essential and non-essential work of fracture of biaxial-oriented filled PET film . Polymer , 37 : 2433 – 2438 .
  • Mouzakis , D. E. , Gahleitner , M. and Karger-Kocsis , J. 1998 . Toughness assessment of elastomeric polypropylene (ELPP) by the essential work of the fracture method . J. Appl. Polym. Sci. , 70 : 873 – 881 .
  • Tang , H. X. , Dai , W. and Chen , B. 2005 . A new method for producing high melt strength polypropylene with reactive extrusion . Macromol. Mater. Eng. , 290 : 1227 – 1234 .
  • ESIS-TC4 . “ Testing protocol for essential work of fracture, 1993 ” . European Structure Integrity Society (ESIS) .
  • Sheng , B. R. , Li , B. , Xie , B. H. , Yang , W. , Feng , J. M. and Yang , M. B. 2008 . Influence of molecular weight and crystalline structure on fracture behavior of controlled-rheology polypropylene prepared by reactive extrusion . Polym. Degrad. Stabil. , 93 : 225 – 232 .
  • Sheng , B. R. , Xie , B. H. , Yang , W. , Li , Q. G. and Yang , M. B. 2008 . Structure and properties of reactive extruded ethylene-block-co-polypropylene: Influence of dicumyl peroxide and divinylbenzene . J. Macromol. Sci. Phys. B , 47 : 1236 – 1250 .
  • Vega , J. F. , Munoz-Escalona , A. , Santamaria , A. , Munoz , M. E. and Lafuente , P. 1996 . Comparison of the rheological properties of metallocene-catalyzed and conventional high-density polyethylenes . Macromolecules , 29 : 960 – 965 .
  • Wei , X. , Collier , J. R. and Petrovan , S. 2007 . Shear and elongational rheology of polyethylenes with different molecular characteristics. I: Shear rheology . J. Appl. Polym. Sci. , 105 : 309 – 316 .
  • Graebling , D. 2002 . Synthesis of branched polypropylene by a reactive extrusion process . Macromolecules , 35 : 4602 – 4610 .
  • Li , Q. G. , Xie , B. H. , Yang , W. , Li , Z. M. , Zhang , W. Q. and Yang , M. B. 2007 . Effect of annealing on fracture behavior of poly(propylene-block-ethylene) using essential work of fracture analysis . J. Appl. Polym. Sci. , 103 : 3438 – 3446 .

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