Is the formation of PLA, an addition or condensation polymerisation? Give a reason for your choice.
Question
Is the formation of PLA, an addition or condensation polymerisation? Give a reason for your choice.
Solution
The formation of PLA (polylactic acid) is a condensation polymerization. This is because PLA is formed by the condensation reaction between lactic acid monomers. In condensation polymerization, small molecules, such as water or an alcohol, are eliminated as byproducts during the polymerization process. In the case of PLA, water is eliminated as a byproduct during the condensation reaction between lactic acid monomers, resulting in the formation of the polymer. Therefore, the formation of PLA is a condensation polymerization.
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condensation polymerization
Which of the following describes condensation polymerisation?Produces a polymer plus a small moleculeUsually involves two different monomersAll of theseThe functional groups on the two different monomers react together2Which of the following is a dioic acid? HOOC-CH2-COOHHO-CH2-OHCH3-CH2-COOHCH3-CH2-CH2-CH2-COOH3A diol is joined with a dioic acid in a condensation polymerisation reaction. What products are formed?Polyester onlyPoly(ethene) plus waterPoly(ethene) onlyPolyester plus water4What is the functional group of an ester?‒OH‒COOH‒COO‒C=C5In a condensation polymerisation reaction between nHO-□-OH and nHOOC-□-COOH, how many water molecules are formed?nH2O3nH2ONo water2nH2O6Which of the following is methanediol?OOC-CH2-COOHOOC-CH2-COOHHO-CH2CH2-OHHO-CH2-OH
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