write down properties of Teflon.
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>> PTFE is a thermoplastic polymer, which is a white solid at room temperature, with a density of about 2.2 g/cm3.
>>According to DuPont, its melting point is 327 °C (621 °F), but its mechanical properties degrade above 260 °C (500 °F).
>>PTFE properties include high molecular weight, hydrophobility, low coefficient of friction, thermoplasticity, good dielectric properties, high electronegativity, and low chemical reactivity.
>>The high molecular weight is a function of being a polymer.
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