Question

Using complete sentences, briefly explain what is happening in the mechanism. Be sure to use the following vocabulary terms: Ester, Carboxylic Acid, Hydroxide, Polymer, Diol, Nucleophilic Attack, Proton Transfer, and Loss of Leaving Group.

The Reaction Scheme: Hydrolysis of a Polyester ОН HO KOH (2eq) ОН HCI (2eq) ОН 2KCI Partner Work Partner Work Discuss and answer the following questions P1. With your partner, discuss the many ways plastics influence your life. How many separate

Answer 1

Hydrolysis of polyester L M (2011) The most important thing is that re bond of c-o is stronger than o bond of c-o, in this mechanism, there basically three steps Step I: Hö on a nucleophile and it attacks the nucleophillic center Je=o, breaking Te bond & creating tetrahedral intermediate HO) Step I as Il band of c=0 is stronger that its o again Cho is reformed with loss of leaving group (alkoxide ,Ro, o , leading to formation of carboxylic acid to open tot ön (6-cm) Step II, now, alkoxide (OGHS) is stronger bare Than carboxylic and So, will abstract proton (H+) from acid, leading to the formation of alcohol & Carboxylate anion. Carboxylate finally ather (left) side of polyester will also react parallel to this, & will give carboxylate ion along with glycol. The carboylete on hydrolysis will He will que carboxylic acid.