Spring 99 EXAM2 - POLYMER PHYSICS Spring 1999 NAME EMA 6165 EXAM II STUDENT INSTRUCTIONS Read the entire exam carefully Answer every question to

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Unformatted text preview: POLYMER PHYSICS - Spring 1999 NAME:___________________________ EMA 6165 - 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. HONOR CODE : We, the members of the University of Florida community, pledge to hold ourselves and our peers to the highest standards of honesty and integrity. Signature:___________________________________________________________ SECTION I: Polymer Structures/Properties. 1. Draw the repeat units for the following polymers. 2. State the relative Tg and/or Tm for each polymer 3. (24pts) Polymer Structural Repeat Unit (2pt) Tg (1pt) Tm (1pt) a. poly(methyl methacrylate) b. poly(propylene) c. poly(hexamethylene adipamide) (nylon6,6,) d. poly(bis phenol A carbonate) e. poly(dimethylsiloxa ne) f. poly(ethylene terephthalate) 1 POLYMER PHYSICS - Spring 1999 NAME:___________________________ EMA 6165 - EXAM II STUDENT #:______________________ 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. Binodal phase separation processes are characterized by instantaneous precipitation with small fluctuations in the electron density initially b. The Entropy of mixing increases in linearly with the temperature squared for an athermal process....
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This note was uploaded on 07/20/2011 for the course EMA 6165 taught by Professor Brennan during the Spring '08 term at University of Florida.

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Spring 99 EXAM2 - POLYMER PHYSICS Spring 1999 NAME EMA 6165 EXAM II STUDENT INSTRUCTIONS Read the entire exam carefully Answer every question to

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