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4. Draw out the repeat units for the following polymers: poly(L-lactic acid) (PLLA or PLA), poly(glycolic acid (PGA), poly(caprolactone) (PCL) a. Electronegative oxygen atoms of these polymers contribute to the hydrophilicity while carbon atoms such as the pendant methyl group in PLA make them more hydrophobic. Rank these polymers in terms of hydrophobicity (most to least hydrophobic). b. Rank these polymers in terms of hydrolytic degradation rate (fastest to slowest). Include a brief explanation.

4. Draw out the repeat units for the following polymers: poly(L-lactic acid) (PLLA or PLA), poly(glycolic acid (PGA), poly(caprolactone) (PCL) a. Electronegative oxygen atoms of these polymers contribute to the hydrophilicity while carbon atoms such as the pendant methyl group in PLA make them more hydrophobic. Rank these polymers in terms of hydrophobicity (most to least hydrophobic). b. Rank these polymers in terms of hydrolytic degradation rate (fastest to slowest). Include a brief explanation.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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4. Draw out the repeat units for the following polymers: poly(L-lactic acid) (PLLA or PLA), poly(glycolic acid (PGA), poly(caprolactone) (PCL) a. Electronegative oxygen atoms of these polymers contribute to the hydrophilicity while carbon atoms such as the pendant methyl group in PLA make them more hydrophobic. Rank these polymers in terms of hydrophobicity (most to least hydrophobic). b. Rank these polymers in terms of hydrolytic degradation rate (fastest to slowest). Include a brief explanation.
Transcribed Image Text:4. Draw out the repeat units for the following polymers: poly(L-lactic acid) (PLLA or PLA), poly(glycolic acid (PGA), poly(caprolactone) (PCL) a. Electronegative oxygen atoms of these polymers contribute to the hydrophilicity while carbon atoms such as the pendant methyl group in PLA make them more hydrophobic. Rank these polymers in terms of hydrophobicity (most to least hydrophobic). b. Rank these polymers in terms of hydrolytic degradation rate (fastest to slowest). Include a brief explanation.
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