Fall 2001 EXAM 2 - POLYMER PROCESSING - FALL 2001 EMA 4666C...

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

View Full Document Right Arrow Icon
POLYMER PROCESSING - FALL 2001 NAME:PUT ON LAST PAGE and SIGN HONOR CODE EMA 4666C - 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. 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. 3. State the relative Tg and/or Tm for each polymer (24pts) Polymer Structural Repeat Unit Process Tg Tm a. poly(ethylene) b. poly(butadiene) c. Nylon 6 (polycaprolactamide) d. poly(phenylene oxide) e. poly(methyl methacrylate) f. poly(vinyl chloride)
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:___________________________ 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. The melting temperature of a single crystal of polyethylene of a defined molar mass is dependent upon time of crystallization. b. The tensile modulus of an extruded polyamide is independent of the die temperature and time to crystallization temperature. c. Crystallization of a polymer from a melt resembles a spinodal phase separation process. . d. The MFI (melt flow index) is inversely proportional to the viscosity of the polymer melt. e.
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.

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.

Page1 / 11

Fall 2001 EXAM 2 - POLYMER PROCESSING - FALL 2001 EMA 4666C...

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