EMA4161-Fall_2010_Exam2reva

EMA4161-Fall_2010_Exam2reva - Student Number:_...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
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. (4 pts each/24 pts total) 1. Indicate the type of polymerization process used to synthesize each of the  structures, i.e. condensation (C), addition (A), or ring opening (RO). 2. State the relative Tg and/or Tm for each polymer.  If either is not  measurable indicate by NA.  Specify stereoisomers, tacticity, etc as required. Polymer Process (2pt) Tg (1pt) Tm (1pt) 1. Poly(arylene ether imide) Ultem 2. poly(n-butyl methacrylate) 3. Poly(propylene) 4. Poly(dimethylsiloxane) 5. Poly(bisphenol A carbonate) 6. Poly(vinyl chloride) EMA 4161C Fall 2010 Exam 2 ver a 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Student Number:___________________________ SECTION II: Concepts. (2pts ea/12pts 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. 7. Physical   aging,   i.e.,   density   of   a   glass,   decreases   logarithmically   with   the   time   at 
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 16

EMA4161-Fall_2010_Exam2reva - Student Number:_...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online