a) Describe the polymerization of a blend of maleic anhydride and 2-methyl-1,3- propanediol in the presence of an acid catalyst. Draw a chemical reaction scheme showing the intermediate and final products that are formed. Describe the reaction conditions that you would use to maximize the yield of polymer.

Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter21: Organic Chemistry
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Problem 91E
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(a) Describe the polymerization of a blend of maleic anhydride and 2-methyl-1,3-
propanediol in the presence of an acid catalyst. Draw a chemical reaction
scheme showing the intermediate and final products that are formed. Describe
the reaction conditions that you would use to maximize the yield of polymer.
(b) Draw the structure of the polymer, showing the repeat unit and end groups, that
is obtained when the mole ratio of maleic anhydride to diol is 0.95
(c) What is the number average molecular weight of the polymer of Part (b) when
the extent of reaction of maleic anhydride is (i) 90% and (ii) 100%.
(d) Describe how the structure of the polymer is altered when it is further reacted
with styrene in the presence of peroxide.
Transcribed Image Text:(a) Describe the polymerization of a blend of maleic anhydride and 2-methyl-1,3- propanediol in the presence of an acid catalyst. Draw a chemical reaction scheme showing the intermediate and final products that are formed. Describe the reaction conditions that you would use to maximize the yield of polymer. (b) Draw the structure of the polymer, showing the repeat unit and end groups, that is obtained when the mole ratio of maleic anhydride to diol is 0.95 (c) What is the number average molecular weight of the polymer of Part (b) when the extent of reaction of maleic anhydride is (i) 90% and (ii) 100%. (d) Describe how the structure of the polymer is altered when it is further reacted with styrene in the presence of peroxide.
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