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dc.contributor.authorAmintowlieh, Yasaman
dc.contributor.authorTzoganakis, Costas
dc.contributor.authorPenlidis, Alexander 19:26:17 (GMT) 19:26:17 (GMT)
dc.descriptionThis is the peer reviewed version of the following article: Amintowlieh, Y., Tzoganakis, C., & Penlidis, A. (2016). An Overview of the Potential of UV Modification of Polypropylene. Macromolecular Symposia, 360(1), 96–107, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.en
dc.description.abstractUV radiation with a photoinitiator has been utilized to modify polypropylene (PP). Factors affecting solid state photomodification were studied and the optimal processing conditions for formation of three different structures (degraded, long chain branched and crosslinked) in PP were determined. A long radiation time (more than 5 minutes) is required to form long chain branched PP (LCBPP) and this exposure time is even higher for production of crosslinked PP (XPP). Trimethylolpropane triacrylate (TMPTA) was utilized to decrease UV radiation duration. Optimal concentrations of TMPTA and photoinitiator for formation of long chain branched and crosslinked PP were determined. Finally, a setup was suggested for continuous photomodification of PP using a twin screw extruder. In this design, PP strands are irradiated directly after the die. Optimal photoinitiator (benzophenone) concentration, coagent (TMPTA) concentration and radiation time required to form controlled rheology (CRPP) or long chain branched PP or crosslinked PP were identified.en
dc.description.sponsorshipNatural Sciences and Engineering Research Council (NSERC) of Canada Canada Research Chair (CRC) programen
dc.subjectUV radiationen
dc.subjectlong chain branchingen
dc.titleAn Overview of the Potential of UV Modification of Polypropyleneen
dcterms.bibliographicCitationAmintowlieh, Y., Tzoganakis, C., & Penlidis, A. (2016). An Overview of the Potential of UV Modification of Polypropylene. Macromolecular Symposia, 360(1), 96–107.en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Chemical Engineeringen
uws.contributor.affiliation2Institute of Polymer Research (IPR)en

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