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Robust mathematical treatment of the Ozawa/Flynn/Wall isoconversion method is conducted to determine the value and uncertainty of the activation energy and pre‐exponential factor for the degradation of polypropylene in thermogravimetric analysis experiments at constant heating rates. The present work employs mathematical models and uncertainty propagation techniques based on the Guide to the Expression...
Front Cover: Free energy of polymer adsorption is sampled in a series of windows – each constrains the system with a harmonic bias potential. Efficiency of this umbrella sampling technique can be significantly improved by allowing the sampling windows to vary along the reaction coordinate. This is reported by Naveen Kumar Vasudevan, Dongyang Li, and Li Xi in article number 2300057.
The structure of a thin film of symmetric ABA triblock copolymer melts in an external in‐plane DC or AC electric field is studied theoretically. The situation is considered when the triblock copolymer forms a hexagonal morphology of standing cylinders in bulk in the absence of an external field. Self‐consistent field theory calculations are carried out to determine the most thermodynamically favorable...