Polyurethanes can be made by the step growth polymerization based on the reaction between isocyanates (R-N=C=O) and alcohols. Predict the repeat unit and draw the reaction mechanism for the polymerization of 4,4'-methylenebis(phenylisocyanate) and ethylene glycol. O=C=N- H -N=C=O 4,4'-methylenebis(phenylisocyanate) HO. OH ethylene glycol

Polyurethanes can be made by the step growth polymerization based on the reaction between isocyanates (R-N=C=O) and alcohols. Predict the repeat unit and draw the reaction mechanism for the polymerization of 4,4'-methylenebis(phenylisocyanate) and ethylene glycol. O=C=N- H -N=C=O 4,4'-methylenebis(phenylisocyanate) HO. OH ethylene glycol

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter31: Synthetic Polymers

Section31.SE: Something Extra

Problem 13VC

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