Question

Polyoxymethylene (polyformaldehyde) is the tough, self-lubricating Delrin $^{\oplus}$ plastic used in gear wheels. (a) Give the structure of polyformaldehyde. (b) Formaldehyde is polymerized using an acidic catalyst. Using $\mathrm{H}^{+}$ as a catalyst, propose a mechanism for the polymerization as far as the trimer. (c) Is Delrin $^{8}$ an addition polymer or a condensation polymer?

          Polyoxymethylene (polyformaldehyde) is the tough, self-lubricating Delrin $^{\oplus}$ plastic used in gear wheels.
(a) Give the structure of polyformaldehyde.
(b) Formaldehyde is polymerized using an acidic catalyst. Using $\mathrm{H}^{+}$ as a catalyst, propose a mechanism for the polymerization as far as the trimer.
(c) Is Delrin $^{8}$ an addition polymer or a condensation polymer?

Added by Laura C.

Organic Chemistry

Janice Gorzynski Smith 4th Edition

Instant Answer

Solved by Expert Grigoriy Sereda

12/21/2021

Step 1

Step 2: The polymerization of formaldehyde using H+ as a catalyst can be proposed as follows: Show more…

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Polyoxymethylene (polyformaldehyde) is the tough, self-lubricating Delrin $^{\oplus}$ plastic used in gear wheels. (a) Give the structure of polyformaldehyde. (b) Formaldehyde is polymerized using an acidic catalyst. Using $\mathrm{H}^{+}$ as a catalyst, propose a mechanism for the polymerization as far as the trimer. (c) Is Delrin $^{8}$ an addition polymer or a condensation polymer?