EMA6165-Fall-2009-EXAM2-Edge

EMA6165-Fall-2009-EXAM2-Edge - POLYMER PHYSICS - Fall...

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POLYMER PHYSICS - Fall 2009-Edge EMA 6165 - EXAM 2 INSTRUCTIONS: Read the entire exam carefully. Answer every question to the best of your ability, based upon the available information. State all assumptions you use in answers. SECTION I: Polymer Structures/Properties. State the polymerization mechanism, i.e., condensation, addition, ring opening. State the relative Tg and/or Tm for each polymer. (20pts) Polymer Polymerization Mechanism (2pt) T g (1pt) T m (1pt) 1. poly(propylene ) 2. poly(arylene ether imide) 3. poly(hexameth ylene adipamide) 4. poly(butadiene ) 5. poly(ethylene) 6. poly(bisphenol A carbonate) Lexan 1
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EMA 6165 - EXAM 2 Concepts. Answer the following statements with TRUE or FALSE . If the statement is false, state the reason(s). If you believe a statement can be made TRUE by a simple qualifier, then state it clearly. (Normally only a single word change is required.) (12 pts) 7 . Spinodal decomposition represents nucleation and growth kinetics of phase segregation. 8 . The osmotic pressure of the dissolved polymer chain scales inversely with the hydrodynamic volume of the chain. 9
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EMA6165-Fall-2009-EXAM2-Edge - POLYMER PHYSICS - Fall...

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