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Unformatted text preview: 0.7 Using these values, the following plot was made to determine the glass transition temperature T g :-100 -80-60-40-20 20 40 60 0.1 1 10 100 1000 10000 Temperature, T (˚C) Relaxatiion Modulus, Er(10) (MPa) FINAL ANSWER: T g = -70˚C DISCUSSION The glass transition temperature is the temperature where the polymer changes from acting as a viscoelastic or viscous material and becomes a brittle elastic material that is significantly weaker. For this material, the glass transition temperature is -70˚C so it is incredibly weak in everyday life. What a shame....
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- Fall '07
- Glass, Viscoelasticity, 10 seconds, glass transition temperature, Glass transition