A short segment of two Kevlar chains is to be drawn and the hydrogen bonding in chain is to be indicated. Concept introduction: Polyamides, a step-growth polymer are synthesized by step-growth polymerization . This polymerization technique is utilized to obtain the different kinds of condensation polymers and addition polymers. The condensation polymerization departs small molecule like H 2 O or HCl as the by-product.

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Chapter 30, Problem 30.36P

Interpretation Introduction

Interpretation: A short segment of two Kevlar chains is to be drawn and the hydrogen bonding in chain is to be indicated.

Concept introduction: Polyamides, a step-growth polymer are synthesized by step-growth polymerization. This polymerization technique is utilized to obtain the different kinds of condensation polymers and addition polymers. The condensation polymerization departs small molecule like H2O or HCl as the by-product.

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Interpreting NMR spectra is a skill that often requires some amount of practice, which, in turn, necessitates access to a collection of NMR spectra. Beyond Labz Organic Synthesis and Organic Qualitative Analysis have spectral libraries containing over 700 1H NMR spectra. In this assignment, you will take advantage of this by first predicting the NMR spectra for two closely related compounds and then checking your predictions by looking up the actual spectra in the spectra library. After completing this assignment, you may wish to select other compounds for additional practice. 1. Write the IUPAC names for the following two structures: Question 2 Question 3 2. Predict the NMR spectra for each of these two compounds by listing, in the NMR tables below, the chemical shift, the splitting, and the number of hydrogens associated with each predicted peak. Sort the peaks from largest chemical shift to lowest. **Not all slots must be filled**

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