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| The detection of the glass transition (Tg) is a fundamental and important measurement in the thermal analysis of polymers. Thermomechanical analysis (TMA) is a basic technique that easily measures the Tg in many polymers. In TMA, a probe is placed on a sample surface and detects Tg by either expansion or penetration as the sample is heated. Recently, the advent of a new thermal analysis technique, Micro Thermal Analysis (¦ÌTATM), has introduced a thermomechanical technique based on detecting expansion or penetration with a thermal Atomic Force Microscopy (AFM) probe. This technique, termed ¦ÌTMATM, can also detect Tg by penetration, but on cubic micrometer size volumes of material. As opposed to ¡°macro¡± TMA, ¦ÌTMA functions by heating the thermal probe. Characteristics of how this new technique detects Tg will be discussed. |
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2017-02-17 10:39:31, 445.38 K
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