The glass transition temperature (Tg) of a thermoplastic is a pivotal thermodynamic and kinetic property of both amorphous and crystalline polymers. It defines the temperature at which a polymer transitions from a glassy, rigid state to a rubbery and more flexible state as its temperature rises. Tg drives all of a typical polymer's mechanical, thermal and processing behaviors in intrinsic ways. It is a fundamental property that allows us to predict, understand and manipulate the performance of p

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