hw4f10 - rate by 50 If the monomer concentration is to be...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Homework #4 Due Tuesday 10/5/10 1. Consider the monomers used to form PET. For each of the following ratios of monomers, determine Xn at 100% conversion. Note: The diol is the monomer with 2 OH's, and the diester is the monomer with the benzene ring. a. 2 moles of diol and 2 moles of diester. b. 2 moles of diol and 4 moles of diester. c. 4 moles of diol and 2 moles of diester. d. 50 moles of diol and 45 moles of diester 2. You are conducting a homogeneous free radical polymerization, and would like to increase the
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: rate by 50%. If the monomer concentration is to be kept constant, how much change in initiator concentration is required to do this? How much of a change in molecular weight will this cause? 3. In preparing an emulsion polymerization, you use a soap concentration of 0.5 wt%. If the CMC for this soap is 2 wt%, what equations would you use to determine the rate and chain length of the polymer that results from the polymerization? You must also explain your choice....
View Full Document

This note was uploaded on 11/16/2011 for the course EMA 3066 taught by Professor Douglass during the Fall '10 term at University of Florida.

Ask a homework question - tutors are online