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Fall 99 EXAM 2 Make Up - POLYMER PROCESSING FALL 1999 EMA...

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POLYMER PROCESSING - FALL 1999 NAME:___________________________ EMA 4666C – Make up EXAM II STUDENT #:______________________ 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. 1. Draw the repeat units for the following polymers. 2. Indicate the type of polymerization process used to manufacture each of the structures. 3. State the relative Tg and/or Tm for each polymer (24pts) Polymer Structural Repeat Unit Process Tg Tm a. poly(methyl methacrylate) b. poly(2,6,-dimethyl phenylene oxide) c. poly(ethylene terephthalate) d. poly(vinyl chloride) e. poly(phenylene amide) f. poly(ethylene)
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POLYMER PROCESSING - FALL 1999 EMA 4666C - EXAM II 4. 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. (12 pts) a. The melt viscosity is directly proportional to the 3.4 power of the strain rate for a pseudoplastic plastic.
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