"In this lab, students will synthesize two examples of condensation polymers, a linear polyester and a cross-linked poly

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"In this lab, students will synthesize two examples of
condensation polymers, a linear polyester and a cross-linked
polyester. Both esters are produced by the reaction of an acid
anhydride (phthalic anhydride) and an alcohol. Phthalic anhydride
is the anhydride of phthalic acid, 1,2-benzenedicarboxylic acid. In
the case of the linear polyester, the alcohol is a diol (ethylene
glycol). Thus both the alcohol and the acid (anhydride) have two
reaction sites and a linear polyester is produced. This polyester
is similar to the more familiar Dacron."
a.Write the chemical equation (not the mechanism) for the
production of the linear and cross-linked polyesters. Show the
structure of the polymer products using brackets around the
repeating unit of the polymer.
b. What type of polymerization (step-growth or chain-growth) is
occurring during the synthesis of these two polyesters? Explain
c.Write the chemical equation (not the mechanism) for the
synthesis of nylon. Show the structure of the polymer product using
brackets around the repeating unit
d. Write a curved arrow mechanism for the reaction that joins
one sebacoyl chloride molecule to one 1,6-hexanediamine molecule.
What functional group is formed