F95EXAM1 - Polymer Science & Engineering -...

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Unformatted text preview: Polymer Science & Engineering - Summer 1998 NAME:___________________________ EMA 3066 - EXAM I 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. Draw the repeat units for the following polymers. Identify whether it is an addition polymer or condensation polymer. (20pts) 1. Poly(propylene) 2. Poly(ethylene terephthalate) 3. Poly(methylmethacrylate) 4. Poly(ethylene) 5. Poly(hexamethylene-adipamide) {Nylon 6,6} 6. poly(styrene) 7. Melamine-formaldehyde Polymer Science & Engineering - Summer 1998 EMA 3066 - EXAM I 8. poly(oxymethylene) 9. Poly(Bisphenol A carbonate) 10. poly(dimethylsiloxane) 2 Polymer Science & Engineering - Summer 1998 EMA 3066 - EXAM I Section II - Polymer Properties: 1. Sketch the three isomers of poly(propylene oxide) {10 pts}. Atactic: Isotactic Syndiotactic 2. Identify which of the three isomers given in question 5 will crystallize. Give the reason for your selection. (5pts) Atactic: Syndiotactic: Isotactic: 3 Polymer Science & Engineering - Summer 1998 EMA 3066 - EXAM I 7. Sketch the change in modulus of poly(oxypropylene) with the change in crystallinity....
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This note was uploaded on 07/17/2011 for the course EMA 4666c taught by Professor Brennan during the Spring '08 term at University of Florida.

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F95EXAM1 - Polymer Science & Engineering -...

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