代写CHMS 5120 – Materials Analysis (Polymer Analysis) Assignment 1代写Java程序

日期：2024-04-06 03:52

Department of Chemistry

CHMS 5120 – Materials Analysis (Polymer Analysis)

Assignment 1

1.) What is the degree of polymerization (DP) of each of the following polymers with molar mass of 100,000 g/mol?

a) Polyacrylonitrile

b) Polycaprolactam

2) Draw the chemical structure of the resulting polymers from the following polycondensation reactions (include all by-products, if any):

3) Draw the structural formula (i.e., one repeating unit) for each of the following Nylon polymers:

a) Nylon-6,6

b) Nylon-11

4) A sample of poly(vinyl chloride) contains polymers of the following mass composition:

Determine Mw, Mn and the polydispersity index (PDI).

5) For end-group analysis, 0.8632 g of a carboxylic acid-terminated polybutadiene (CTPB) sample dissolved in ethanol was titrated with 5.2 mL of 0.1240 M alcoholic potassium hydroxide solution using phenolphthalein as the indicator. Calculate the molar mass of the CTPB polymer.

6) Consider the following 1H-NMR spectrum of a diblock copolymer:

a) Determine the value of n in the above chemical structure.

b) Determine the Mn of this diblock copolymer.