Fall_2009_Exam3_ver_b

Fall_2009_Exam3_ver_b - Student Number INSTRUCTIONS Read...

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INSTRUCTIONS : Read the entire exam carefully . Answer every question to the best of your ability, based upon the available information. State all assumptions in answers. SECTION I: Polymer Structures/Properties. (3 pts each/24 pts total) 1. Indicate the type of polymerization process used to synthesize each of the structures, i.e.  condensation, addition, ring opening. 2. State the relative Tg and/or Tm for each polymer.  If neither are measurable indicate by NA.   3. Specify stereoregularity as required by structure. Polymer Process Tg Tm 1 . Poly(bisphenol A carbonate) 2 . Poly(hexamethylene adipamide) 3 . Poly(ethylene oxide) 4 . Poly(propylene) 5 . Poly(butadiene) 6 . Poly(styrene) 7 . poly(caprolactone) (Nylon 6) 8 . Poly(dimethylsiloxane) SECTION II: Concepts. (2pts ea/12pts total) 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.   HINT:  Normally one word can be modified to correct false statements. 9. Die output for a tube on an extruder is directly proportional to the diameter raised to the  first power. EMA 4161C Fall 2009 Exam 3 ver a
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Fall_2009_Exam3_ver_b - Student Number INSTRUCTIONS Read...

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