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Unformatted text preview: POLYMER PROCESSING - FALL 2009 NAME: PUT ON LAST PAGE and SIGN HONOR CODE EMA 4161C Quiz 3 STUDENT #:______________________ Version 1 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/9 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 either are not measurable indicate by NA. Polymer Process Tg Tm 1. poly(phenol A carbonate) 2. poly(phenylether imide) 3. poly(dimethylsiloxane) Concepts. (3pts ea/9pts 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. 4. Lamellae thickness varies indirectly with the Growth rate in the Hoffman Regime I kinetic model 5. The pressure output for a tube is inversely proportional to the mean square of the radius of gyration 6. The shear stress at the wall varies indirectly with the radius of a tube. Student Number:___________________________ EMA 4161C Fall 2009 Quiz 3 2 Graphical Relationships: A. SHOW ALL EQUATIONS. B. EACH GRAPH SHOULD BE A LINEAR RELATIONSHIP. C. LABEL ALL AXES WITH THE APPROPRIATE UNITS. D. CLEARLY STATE ALL ASSUMPTIONS. 7. Plot the Pressure Drop in the extruder screw as a function of the temperature (Assume Newtonian behavior) 3 pts SECTION II: Definitions/Concepts. (2 ea/4 pts Total) Give a BRIEF description for each of the following terms in the SPACE provided. Equations or illustrations can be used to describe a relationship....
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This note was uploaded on 07/17/2011 for the course EMA 4161c taught by Professor Staf during the Fall '10 term at University of Florida.
- Fall '10