Organic Chemistry, Loose-leaf Version
8th Edition
ISBN: 9781305865549
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Chapter 29, Problem 29.35P
(a)
Interpretation Introduction
Interpretation:
The product of sulfonation of each benzene ring has to be shown.
Concept introduction:
A monomer is a molecule that is able to bond in long chains.
(b)
Interpretation Introduction
Interpretation:
The sulfonated polymer act as a cationic exchange resin has to be explained.
Concept introduction:
Polymers are also known as macromolecules or large-sized molecules it’s prepared from monomer.
A monomer is a molecule that is able to bond in long chains.
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(a) Hard contact lenses, which first became popular in the 1960s, were made by polymerizing methyl methacrylate
[CH; =C(CH,)CO,CH3] to form poly(methyl methacrylate) (PMMA). Draw the structure of PMMA. (b) More comfortable softer
contact lenses introduced in the 1970s were made by polymerizing hydroxyethyl methacrylate [CH2=C{CH)CO,CH,CH2OH] to
form poly(hydroxyethyl methacrylate) (poly-HEMA). Draw the structure of poly-HEMA. Since neither polymer allows oxygen from
the air to pass through to the retina, newer contact lenses that are both comfortable and oxygen-permeable have now been
developed.
One common type of cation exchange resin is prepared by polymerization of a mixture containing styrene and 1,4-divinylbenzene . The polymer is then treated with concentrated sulfuric acid to sulfonate a majority of the aromatic rings in the polymer.
Q.) Explain how this sulfonated polymer can act as a cation exchange resin
(a) Hard contact lenses, which first became popular in the 1960s, were made by polymerizing methyl methacrylate [CH2 = C(CH3)CO2CH3] to form poly(methyl methacrylate) (PMMA). Draw the structure of PMMA. (b) More comfortable softer contact lenses introduced in the 1970s were made by polymerizing hydroxyethyl methacrylate [CH2 = C(CH3)CO2CH2CH2OH] to form poly(hydroxyethyl methacrylate) (poly-HEMA). Draw the structure of poly-HEMA. Since neither polymer allows oxygen from the air to pass through to the retina, newer contact lenses that are both comfortable and oxygen-permeable have now been developed.
Chapter 29 Solutions
Organic Chemistry, Loose-leaf Version
Ch. 29.2 - Prob. 29.1PCh. 29.5 - Prob. 29.2PCh. 29.6 - Prob. AQCh. 29.6 - Prob. BQCh. 29.6 - Prob. CQCh. 29.6 - Prob. DQCh. 29.6 - Prob. EQCh. 29.6 - Prob. FQCh. 29.6 - Prob. 29.3PCh. 29.6 - Prob. 29.4P
Ch. 29 - Prob. 29.5PCh. 29 - Prob. 29.6PCh. 29 - Prob. 29.7PCh. 29 - Prob. 29.8PCh. 29 - Prob. 29.9PCh. 29 - Prob. 29.10PCh. 29 - Prob. 29.11PCh. 29 - Prob. 29.12PCh. 29 - Prob. 29.13PCh. 29 - Prob. 29.14PCh. 29 - Prob. 29.15PCh. 29 - Prob. 29.16PCh. 29 - Polycarbonates (Section 29.5C) are also formed by...Ch. 29 - Prob. 29.18PCh. 29 - Prob. 29.19PCh. 29 - Prob. 29.20PCh. 29 - Prob. 29.21PCh. 29 - Draw a structural formula of the polymer resulting...Ch. 29 - Prob. 29.23PCh. 29 - Prob. 29.24PCh. 29 - Prob. 29.25PCh. 29 - Select the monomer in each pair that is more...Ch. 29 - Prob. 29.27PCh. 29 - Prob. 29.28PCh. 29 - Prob. 29.29PCh. 29 - Prob. 29.30PCh. 29 - Prob. 29.31PCh. 29 - Prob. 29.32PCh. 29 - Prob. 29.33PCh. 29 - Radical polymerization of styrene gives a linear...Ch. 29 - Prob. 29.35PCh. 29 - Prob. 29.36PCh. 29 - Prob. 29.37PCh. 29 - Prob. 29.38P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- (a) Hard contact lenses, which first became popular in the 1960s, were made by polymerizing methyl methacrylate [CH2=C(CH3)CO2CH3] to form poly(methyl methacrylate) (PMMA). Draw the structure of PMMA. (b) More-comfortable softer contact lenses introduced in the 1970s were made by polymerizing hydroxyethyl methacrylate [CH2=C(CH3)CO2CH2CH2OH] to form poly(hydroxyethyl methacrylate) (poly-HEMA). Draw the structure of poly-HEMA. Because neither polymer allows oxygen from the air to pass through to the retina, newer contact lenses that are both comfortable and oxygen-permeable have now been developed.arrow_forwardOne common type of cation exchange resin is prepared by polymerization of a mixture containing styrene and 1,4-divinylbenzene . The polymer is then treated with concentrated sulfuric acid to sulfonate a majority of the aromatic rings in the polymer. Q.) Show the product of sulfonation of each benzene ring.arrow_forwardNeed help with part b,c,darrow_forward
- (d) Another variation on this type of polymer is used in hair gels. In these, the polymer chains are cross-linked by a compound known as pentaerythritol. но- OH но- OH pentaerythritol ( By what type of chemicat reaction are the cross-links in this polymer formed? (i) it is important that the gel should be easily washed out of hair What is it about the structure of the polymer that allows this to happen?arrow_forwardNH2 Dry-erase boards, or whiteboards, in classrooms consist of a network polymer similar to Bakelite that is made from formaldehyde and melamine. (a) Propose a structure for the polymer formed. (b) Why is this type of polymer suitable for use in whiteboards? 'N. H2N `NH2 Melaminearrow_forward(4) Describe the synthesis of plastic especially polyethylene, 1,1- dichloroethane, and polyvinyl chloridearrow_forward
- Poly(vinyl alcohol), a hydrophilic polymer used in aqueous adhesives, is made by polymerizing vinyl acetate and then hydrolyzing the ester linkages. We have seen that basic hydrolysis destroys the Dacron polymer. Poly(vinyl acetate) is converted to poly(vinyl alcohol) by a basic hydrolysis of the ester groups. Why doesn’t the hydrolysis destroy the poly(vinyl alcohol)polymer?arrow_forward3. Dacron is the brand name for the polymer that is made from ethane-1,2-diol and benzene-1,4-dicarboxylic acid. (a) What type of polymer is Dacron? (b) When the two monomers combine, what type of reaction do they undergo and what molecule is eliminated? (c) What is the name for the linkages that join the monomers together?(d) Draw the monomers and the polymer of the reaction to create Dacron. (Use a condensed structural formula in your answer.) HC-C styrene H-O-C- ethane-1,2-diol I H OH НО. 206 H -C-0-H H benzene-1.4-dicarboxylic acid.arrow_forwardb Explain why nylon-6 can be classified as a polyamide. c Explain why some chemists classify nylon-6 as an addition polymer and not a condensation polymer. d Suggest the product of hydrolysis of nylon-6.arrow_forward
- Concerning the polymers produced from monomers containing a single C=C double bond, the following generalizations are apparent: (a) The polymers produced are almost always unsubstituted (i.e. ethylene) or have one substituent on the double bond or two substituents on the same carbon atom of the double bond. Monomers containing one or more substituents on each carbon of the double bond seldom polymerize. (b) Most chain polymerizations are carried out by radical initiation; relatively few are produced by ionic initiation. Why? Explain the reasons for these generalizationsarrow_forwardThe ε-caprolactone monomer from which the biopolymer polycaprolactone (PCL) is synthesized is depicted below. (a) What is the monomer's function? (b) What is the polymerization mechanism that results in the formation of PCL? (c) Define/Illustrate the homopolymer's repeating unit provided that the functional group is placed at the hydrocarbon chain's terminal position.arrow_forwardPlease long and clear explanations.arrow_forward
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