Production of high melt strength polypropylene by gamma irradiation

Radiation Physics and Chemistry

Volumn 76, Issue 11-12, 2007, Pages 1691-1695

  Lugao A B ^a   Artel, B W H ^b   Yoshiga, A ^a   Lima, L F C P ^a   Parra, D F ^a   Bueno, J R ^a   Liberman, S ^c   Farrah, M ^c   Tercariol W R ^c   Otaguro, H ^a  

^a INSTITUTO DE PESQUISAS ENERGÉTICAS E NUCLEARES   (Brazil)

^b EMBRARAD   (Brazil)

^c Braskem SA   (Brazil)

Author keywords

Crosslinking and melt strength; Gamma radiation; Polypropylene

Indexed keywords

DRAWABILITY; EXTENSIBILITY; IRRADIATION PROCESS; MELT STRENGTH;

ACRYLIC MONOMERS; CROSSLINKING; FLOW RATE; GAMMA RAYS; MELTING; RADIATION EFFECTS;

POLYPROPYLENES;

ACRYLIC ACID DERIVATIVE; ALLYL COMPOUND; COBALT 60; CYANURIC ACID; MONOMER; POLYPROPYLENE; PROPANE; TRIALLYL ISOCYANURATE; TRIMETHYLOLPROPANE TRIMETHACRYLATE; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL STRUCTURE; CROSS LINKING; FLOW KINETICS; FLOW RATE; GAMMA IRRADIATION; GEL; REACTION ANALYSIS; STRENGTH; TECHNOLOGY;

EID: 34548609467     PISSN: 0969806X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.radphyschem.2007.03.013     Document Type: Article

References (12)

1. Azizi H., and Ghasemi I. Reactive extrusion of polypropylene? Production of controlled-rheology polypropylene (CRPP) by peroxide promoted degradation. Polym. Test. 23 (2004) 137-143
2. Chmielewski A.G., Haji-Saeid M., and Ahmed S. Progress in radiation processing of polymers. Nucl. Instrum. Methods Phys. Res. B 236 (2005) 44-54
3. He C., Costeux S., Wood-Adams P., and Dealy J.M. Molecular structure of high melt strength polypropylene and its application to polymer design. Polymer 44 (2003) 7181-7188
4. Kurzbeck S., Oster F., and Münstedt H. Rheological properties of two polypropylenes with different molecular structure. J. Rheol. 43 2 (1999) 349-374
5. Lagendijk R.P., Hogt A.H., Buijtenhuijs A., and Gotsis A.D. Peroxydicarbonate modification of polypropylene and extensional flow properties. Polymer 42 (2001) 10035-10043
6. Lau H.C., Bhattacharya S.N., and Field G.J. Melt strength of polypropylene? Its relevance to thermoforming. Polym. Eng. Sci. 38 (1998) 1915-1919
7. Lee Y.J., Sohn H.S., and Park S.H. Effect of chain structure of polypropylene on the melt flow behavior. Korea-Australia Rheol. J. 12 (2000) 181-186
8. Lugão A.B., Hutzler B., Ojeda T., Tokumoto S., Siemens R., Makuuchi K., and Villavicencio A.L.C.H. Reaction mechanism and rheological properties of polypropylene irradiated under various atmospheres. Radiat. Phys. Chem. 57 (2000) 389-392
9. Lugão A.B., Noda L., Cardoso E.C.L., Hutzler B., Tokumoto S., and Mendes A.N.F. Temperature rising elution fractionation, infra red and rheology study on gamma irradiated HMSPP. Radiat. Phys. Chem. 63 (2002) 509-512
10. Muke S., Ivanov I., Kao N., and Bhattacharya S.N. Extensional rheology of polypropyelne melts from the Rheotens test. J. Non-Newtonian Fluid Mech. 101 (2001) 77-93
11. Rätzsch M., Arnold M., Borsig E., Bucka H., and Reichelt N. Radical reactions on polypropylene in the solid state. Prog. Polym. Sci. 27 (2002) 1195-1282
12. Romani F., Corrieri R., Braga V., and Ciardelli F. Monitoring chemical crosslinking of propylene polymers through rheology. Polymer 43 (2002) 1115-1131