EMA4161C-Fall_2011_Quiz1ver1

EMA4161C-Fall_2011_Quiz1ver1 - Student Number INSTRUCTIONS...

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Student Number:___________________________ 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. (2 pts each/8 pts total) 1. State the relative Tg and/or Tm for each polymer.  If either are not measurable indicate by  NA.   Polymer Tg Tm 1. poly(propylene) 2. poly(hexamethylene adipamide) Nylon 6,6 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. 3 . Chain fracture initiates at the yield stress. 1 EMA 4161C Fall 2011 Quiz 1
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4 . Poly(styrene-block-butadiene-block-styrene) is a random copolymer 5 .
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