Condensation polymers Knowledge-Based Download PDF

Questions

1. 1.

   Which structural feature makes condensation polymers inherently more susceptible to hydrolytic degradation than typical polyalkene addition polymers?

   • A) The presence of polar functional linkages, such as ester or amide groups, within the main polymer backbone
   • B) The presence of reactive carbon-carbon double bonds throughout the repeating units of the polymer backbone
   • C) The absence of covalent bonding between adjacent monomer units along the primary polymer chain
   • D) The presence of nonpolar hydrocarbon branch points that prevent crystalline intermolecular packing
2. 2.

   Which monomer property is strictly required to form a three-dimensional cross-linked network polymer rather than a linear chain during condensation polymerization?

   • A) At least one reacting monomer must possess three or more reactive functional groups.
   • B) Both reacting monomers must possess exactly two identical terminal functional groups.
   • C) The reacting monomers must contain conjugated carbon–carbon double bonds.
   • D) Each reacting monomer must have a molecular mass exceeding 500 g/mol.
3. 3.

   Which small molecule is eliminated as a byproduct during the condensation polymerization of terephthaloyl chloride and 1,4-diaminobenzene to produce Kevlar?

   • A) Water ($\text{H}_2\text{O}$)
   • B) Ammonia ($\text{NH}_3$)
   • C) Methanol ($\text{CH}_3\text{OH}$)
   • D) Hydrogen chloride ($\text{HCl}$)
4. 4.

   Which functional linkage is formed between the monomer units during the condensation polymerization of 1,6-diaminohexane and hexanedioic acid to produce Nylon-6,6?

   • A) Ester linkage
   • B) Amide linkage
   • C) Ether linkage
   • D) Anhydride linkage
5. 5.

   Which of the following monomer pairs reacts to form a synthetic polyester through condensation polymerization?

   • A) 1,3-Butadiene and phenylethene
   • B) Hexane-1,6-diamine and hexanedioic acid
   • C) Benzene-1,4-dicarboxylic acid and ethane-1,2-diol
   • D) Propene and tetrafluoroethene