Melting of Polymer Crystals by Modulated DSC

Characterization of Melting Phenomena in Linear Low Density Polyethylene by Modulated Dsc

Crystallization of Polymers Investigated by Temperature-Modulated DSC

The aim of this review is to summarize studies conducted by temperature-modulated differential scanning calorimetry (TMDSC) on polymer crystallization. This technique can provide several advantages for the analysis of polymers with respect to conventional differential scanning calorimetry. Crystallizations conducted by TMDSC in different experimental conditions are analysed and discussed, in or...

Thermal Conductivity of Polymers, Glasses & Ceramics by Modulated Dsc

This study describes a new method for the measurement of thermal conductivity of insulating materials in the range from 0.1 to 1.5 W/°C m which generally covers polymers, ceramics and glasses. The method is based on Modulated DSC and includes no modification or additions to the apparatus itself. One additional calibration step is required to compensate for heat loss through the inert purge gas ...

Twinning of Polymer Crystals Suppressed by Entropy

We propose an entropic argument as partial explanation of the observed scarcity of twinned structures in crystalline samples of synthetic organic polymeric materials. Polymeric molecules possess a much larger number of conformational degrees of freedom than low molecular weight substances. The preferred conformations of polymer chains in the bulk of a single crystal are often incompatible with ...

Modulated Dsc Evaluation of Isothermal Cure & Vitrification for Thermosetting Systems