Enthalpy recovery of a single polystyrene thin film is quantified by both experiments using Flash DSC and mode- ling using a new modified TNM model. Experimental data include Kovacs’ three signatures of structural recovery: intrinsic isotherms after temperature down jumps, the asymmetry of approach after temperature down and up jumps of the same size, and the mem- ory effect after a two-step history. A new modified TNM model is proposed to quantitatively fit all three signatures of structural recovery with a single set of model parameters. Here, we eluci- date the detailed derivation of the new modified model and dem- onstrate its applicability to the experimental Flash DSC results

Complete Set of Enthalpy Recovery Data Using Flash DSC: Experiment and Modeling

Grassia, Luigi
;
2018

Abstract

Enthalpy recovery of a single polystyrene thin film is quantified by both experiments using Flash DSC and mode- ling using a new modified TNM model. Experimental data include Kovacs’ three signatures of structural recovery: intrinsic isotherms after temperature down jumps, the asymmetry of approach after temperature down and up jumps of the same size, and the mem- ory effect after a two-step history. A new modified TNM model is proposed to quantitatively fit all three signatures of structural recovery with a single set of model parameters. Here, we eluci- date the detailed derivation of the new modified model and dem- onstrate its applicability to the experimental Flash DSC results
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11591/386602
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