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Unformatted text preview: POLYMER PROCESSING - FALL 2003 NAME: PUT ON LAST PAGE and SIGN HONOR CODE EMA 4666C - EXAM 2 STUDENT #:______________________ 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. (26 questions Total) SECTION I: Polymer Structures/Properties. 1. Draw the structural repeat units for the following polymers. 2. Indicate the type of polymerization process used to synthesize each of the structures, i.e. condensation, addition, ring opening. 3. State the relative Tg and/or Tm for each polymer. If a Tm is not expected indicate by NA. (24pts) Polymer Structural Repeat Unit Process Tg Tm 1. poly(ether imide) Ultem 2. poly(propylene) 3. poly(caprolactam) (Nylon 6) 4. poly(styrene) 5. poly(ethylene oxide) 6. poly(tetrafluoroethylene) Student Number:___________________________ 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) 7 . Birefringence is a measure of the difference in the refractive index of the primary axis of orientation of crystals and the refractive index in the transverse direction relative to the primary axis....
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This note was uploaded on 09/18/2011 for the course EMA 4666c taught by Professor Brennan during the Spring '08 term at University of Florida.
- Spring '08