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Tailored bimodal ultra‐high molecular weight polyethylene particles Part A Polymer chemistry

Author:
Lafleur, Sarah, Berthoud, Romain, Ensinck, Richard, Cordier, Astrid, De Cremer, Gert, Philippaerts, An, Bastiaansen, Kees, Margossian, Tigran, Severn, John R.
Source:
Journal of polymer science 2018 v.56 no.15 pp. 1645-1656
ISSN:
0887-624X
Subject:
catalysts, magnesium chloride, molecular weight, particle size, polyethylene, polymerization
Abstract:
A single molecular catalyst system supported on MgCl₂ has been developed and combined with a simple two‐stage fed‐batch polymerization process to produce tailored bimodal polyethylene reactor blend particles of UHMWPE. By varying and controlling the process conditions in the first stage and second stage, bimodal HMWPE:UHMWPE reactor particles are obtained with independent control over the individual molar masses, the mass ratio of the HMWPE and UHMWPE components, and the reactor powder particle size. This allows multidimensional control over the individual UHMWPE reactor particle properties. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 1645–1656
Agid:
5983090