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2 - l(30 pt Polylactide(PLA is a biodegradable polymer that...

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Unformatted text preview: l. (30 pt.) Polylactide (PLA) is a biodegradable polymer that derived from renewable resources. It is synthesized from lactic acid that is produced by fermentation of sugarcane or cornstarch. The lactic acid is first converted Via esterification to a lactide, that is polymerized in the presence of an acidic catalyst. O HBC\(“\ O Lactic acid —> —;- polymer 0 #CH3 0 Lactide a. (5 pt.) What is the structure of lactic acid? b. (15 pt.) What will be the fate of the lactide in the presence of NaOH solution? Provide a dallied arrow-pushing mechanism. ...
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