Front Cover: The catalyst is the heart of the low‐pressure olefin polymerization process. The kinetic parameters governing the reaction kinetic scheme as well as the number and initial weight fraction of site types, can be revealed combining polymerization, fractionation, and spectroscopic techniques together with polymer reaction engineering modelling. Further details can be found in the article by Vasileios Touloupidis, Andreas Albrecht, and João B. P. Soares, article number https://doi.org/10.1002/mren.201700056.

Cover: This review article presents the basic framework for catalytic olefin polymerization kinetic modeling. Further details can be found in the article by V. Touloupidis* http://doi.wiley.com/10.1002/mren.201300188.

The scope of this work is to explain the multi‐scale polymerization process modeling framework, comprising of polymerization kinetics (micro‐scale), system thermodynamics (meso‐scale), and reactor performance (macro‐scale) as well as to present the methodology for developing a mathematical model for catalytic olefin polymerization. Guidelines for tuning the kinetic model parameters are proposed. This review aims to provide basic knowledge and understanding regarding catalytic olefin polymerization kinetics and offers the starter‐kit tools for developing similar works.

Front Cover: Polymer reaction engineering offers the theoretical background for the modeling pathway from polymerization process conditions to polymer microstructure and end‐use properties. This pathway consists of concrete steps: (i) connection of reaction conditions to polymer microstructure, (ii) connection of microstructure to first level properties, and, (iii) estimation of second level properties as a function of microstructure and/or first level properties. This is reported by Vasileios Touloupidis, Gerold Rittenschober, and Christian Paulik in article 2000028.

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