Question: 1. The repeating unit structure of polyurethane is shown below. fo-C-NH -gnomo -CH -NH-C-0-CH2-CH2-CH-CH2- II o (a) Identify the reaction principle (b) Write down the

1. The repeating unit structure of polyurethane is shown below. fo-C-NH

1. The repeating unit structure of polyurethane is shown below. fo-C-NH -gnomo -CH -NH-C-0-CH2-CH2-CH-CH2- II o (a) Identify the reaction principle (b) Write down the chemical structures of the monomers from which the polymer could be prepared

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