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Chapter 8 Dynamic mechanical properties of polymers

1. Sinusoidal vibration: Single Voigt element

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πω2

)12.7( ×=W

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2. Free vibration methods

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• Torsional pendulum analysis

3. Forced-vibration methods: Nonresonance methods

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4. Dynamic mechanical properties of polymers

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(i) The effect of molecular weight

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(ii) Effect of crosslinking

(iii) Effect of crystallinity

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(iv) Effects of copolymerization and plasticization

Effects of two-phase block and graft polymers and polyblends