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Chapter 22: Q29. (page 903)

Question: Poly(lactic acid) (PLA) has received much recent attention because the lactic acid monomer [CH3CH(OH)COOH ] from which it is made can be obtained from carbohydrates rather than petroleum. This makes PLA a more 鈥渆nvironmentally friendly鈥� polyester. (A more in-depth discussion of green polymer synthesis is presented in Chapter 30.) Draw the structure of PLA.

Short Answer

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Answer

The structure of PLA is shown below:

Step by step solution

01

Step-by-Step Solution Step 1: Polylactic acid

Polylactic acid belongs to the biomaterials, i.e., a hydrophobic polymer. It is a biodegradable polymer.

02

Formation of products

The reaction is shown below:

Structure of PLA

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