Polymerisation: condensation and degradable polymers (A Level only)：练习题

Which statement about addition polymerisation is correct?

A section of an addition polymer is shown below:
\( -CH_2-CH(CH_3)-CH_2-CH(CH_3)-CH_2-CH(CH_3)- \)
What is the correct monomer used to produce this polymer?

An addition polymer is formed from a single monomer. A segment of this polymer is shown below:
\( -CH(CH_3)-CH(C_2H_5)-CH(CH_3)-CH(C_2H_5)- \)
What is the IUPAC name for the monomer used?

Kevlar is a high-strength polymer used in bulletproof vests. It is formed by the condensation of benzene-1,4-diamine and benzene-1,4-dicarboxylic acid. Which structural feature contributes most to its high tensile strength?

A specific polyamide is synthesized from the monomer 2-aminopropanoic acid. What is the repeat unit of this polymer?

Draw the repeat unit of the addition polymer formed from the monomer chloroethene, \(CH_2=CHCl\).

State two structural differences between addition polymers and condensation polymers.

Explain why Kevlar, a polyamide, is significantly more resistant to alkaline hydrolysis than poly(ethylene terephthalate) (PET), despite both being condensation polymers.