Thermal Relaxations of Polymers Revealed by Reversing and Non-Reversing Coefficient of Thermal Expansion

Robert A. Shanks

doi:10.4028/www.scientific.net/AMR.123-125.451

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 123-125Thermal Relaxations of Polymers Revealed by...

Thermal Relaxations of Polymers Revealed by Reversing and Non-Reversing Coefficient of Thermal Expansion

Abstract:

Reversible and irreversible events can be resolved) using modulated temperature DSC and TMA. Each technique has advantages, those for TMA include longer times and slower scan rates that allow greater approach to material equilibrium. The thermal expansion coefficient and glass transition temperature can be isolated from relaxations and structural changes. Modulated temperature thermomechanometry (mT-TM) is used to characterize amorphous thermoplastics including PS, PMMA, PC and PPO, and the results including annealing, heating and cooling.

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Periodical:

Advanced Materials Research (Volumes 123-125)

Pages:

451-454

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.123-125.451

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Online since:

August 2010

Authors:

Robert A. Shanks

Keywords:

Analysis, Coefficient of Thermal Expansion, Glass Transition, Heat Capacity, Thermal Ageing, Thermomechanical

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