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[27.3] condensation polymers

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Total cards: 12•Content version: v4•Public deck•Updated: 8/1/2026

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#1
Front (Question)

what is condensation polymerisation?

Back (Answer)

joining of monomers with the loss of a small molecule, usually water or hydrogen chloride

#2
Front (Question)

how many different functional groups are needed in condensation polymerisation?

Back (Answer)

2

#3
Front (Question)

what are the monomers that undergo condensation polymerisation? (3)

Back (Answer)

• dicarboxylic acids with diols • dicarboxylic acids with diamines • amino acids

#4
Front (Question)

polyesters made of one monomer containing two different functional groups

Back (Answer)

• one monomer with hydroxyl (-OH) and carboxyl (-COOH) group • ester bond formed when OH of COOH and H of OH are removed • 1 molecule of water formed per ester bond

#5
Front (Question)

polyesters made from two monomers each containing two functional groups

Back (Answer)

• monomer 1: diol, with two hydroxyl groups • monomer 2: dicarboxylic acid, with two carboxyl groups • ester bond formed when OH of COOH and H of OH are removed • 1 molecule of water formed per ester bond

#6
Front (Question)

polyamies made from one monomer with two functional groups

Back (Answer)

• monomer = amino acids • amide bond formed when OH of COOH and H of NH₂ are removed • 1 molecule of water formed per amide bond

#7
Front (Question)

polyamides made from two monomers each with two functional groups

Back (Answer)

• monomer 1: dicarboxylic acid or dioyl chloride • monomer 2: diamine • if CA monomer, amide bond is formed when H of NH₂ and OH of COOH are removed • if dioyl chloride monomer, amide bond is formed when H of NH₂ and Cl of COCl are removed • (2n-1) H₂O / HCl made per amide bond

#8
Front (Question)

what can polyesters and polyamides be hydrolysed by?

Back (Answer)

• hot aqueous acid (eg. HCl) • hot aqueous alkali (eg. NaOH)

#9
Front (Question)

acid hydrolysis of polyesters

Back (Answer)

• reflux with dilute H+/H₂O • reactants: polyester + 2n H₂O • products: dioic acid + diol

#10
Front (Question)

base hydrolysis of polyesters

Back (Answer)

• reflux with dilute NaOH/H₂O • reactants: polyester + 2n NaOH • products: diol + dicarboxylate salt (ie. COO⁻Na⁺)

#11
Front (Question)

acid hydrolysis of polyamides

Back (Answer)

• reflux with dilute H+/H₂O • reactants: polyamide + 2n H₂O • products: dioic acid + diammonium salt (ie. NH₃⁺Cl⁻)

#12
Front (Question)

base hydrolysis of polyamides

Back (Answer)

• reflux with dilute NaOH/H₂O • reactants: polyamide + 2n NaOH • products: dicarboxylate salt + diamine (NH₂)