Polymers of Life 3: Hydrolysis of Esters & Amides
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Definition of hydrolysis
Breaking molecule using water
How do you Hydrolysis an ester What are the conditions required
• Warming with dilute acid/ HCl or sodium hydroxide solution • Different products are formed depending on whether uses acid / alkali catalyst ( polyesters can also be hydrolysed by acid / alkali in sane way )
What are the products of the hydrolysis of an ester if an acid catalyst is used
Carboxylic acid + alcohol
What are the products of the hydrolysis of an ester when a alkali catalyst is used
Carboxylic acid anion ( carboxylate ion ) + alcohol
What bond is broken down in amides during hydrolysis
C-N bond
What are the conditions of the hydrolysis of an amide required
• Heating amide with moderately concentrated hydrochloric acid or sodium hydroxide solution • warming with acid / alkali catalyst ( polyamide = similar as contain amide group )
Product of the hydrolysis of an amide using an acid catalyst
Carboxylic acid + ammonium salt
Product of hydrolysis of an amide using an alkali catalyst
Carboxylic acid anion ( carboxylate ion = salt ) + amine ( or ammonia ) + H2O