Organic Chemistry
7th Edition
ISBN: 9780321803221
Author: Paula Y. Bruice
Publisher: Prentice Hall
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Question
Chapter 27, Problem 39P
Interpretation Introduction
Interpretation:
The reason for the brittleness of the objects and balls made up of natural rubber when exposed to air for longer periods should be given. Also the reason behind slowness in objects made of polyethylene should be determined.
Concept Introduction:
Monomers combine together to form polymers. Monomers are the repeating units of small molecules which link together to form polymers and the process is called as
Two types of polymers:
- Synthetic and biopolymers.
- DNA is an example for biopolymer and these type of polymers are synthesized by cells.
- Polymers synthesized by scientists are called
synthetic polymers and some examples are nylon, polyester etc.
Natural rubber:
- Monomer unit is isoprene unit
- The double bonds in natural rubber is having Z configuration.
- There will be appropriately 5000 isoprene units in a molecule of rubber.
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b.
CH3
H3C
CH3
CH3
H3C
an unexpected product,
containing a single 9-
membered ring
the expected product,
containing two fused rings
H3C-I
(H3C)2CuLi
an enolate
b.
H3C
CH3
1.
2. H3O+
H3C
MgBr
H3C
Predict the major products of this reaction:
excess
H+
NaOH
?
A
Note that the first reactant is used in excess, that is, there is much more of the first reactant than the second.
If there won't be any products, just check the box under the drawing area instead.
Explanation
Check
Click and drag to start drawing a
structure.
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Chapter 27 Solutions
Organic Chemistry
Ch. 27.2 - Prob. 1PCh. 27.2 - Prob. 2PCh. 27.2 - Prob. 3PCh. 27.2 - Prob. 4PCh. 27.2 - Prob. 5PCh. 27.2 - Prob. 6PCh. 27.2 - Prob. 7PCh. 27.2 - Rank the following groups of monomers from most...Ch. 27.2 - Why does methyl methacrylate not undergo cationic...Ch. 27.2 - Explain why, when propylene oxide undergoes...
Ch. 27.2 - Prob. 11PCh. 27.2 - Which monomer and which type of initiator can you...Ch. 27.2 - Prob. 13PCh. 27.4 - Draw a short segment of gutta-percha.Ch. 27.4 - Prob. 15PCh. 27.7 - Prob. 16PCh. 27.7 - Write an equation that explains what happens if a...Ch. 27.7 - Prob. 18PCh. 27.7 - What happens to polyester slacks if aqueous NaOH...Ch. 27.7 - a. Propose a mechanism for the formation of the...Ch. 27.7 - Explain why, when a small amount of glycerol is...Ch. 27.8 - Propose a mechanism for the formation of melmac.Ch. 27.8 - Prob. 23PCh. 27.10 - Prob. 24PCh. 27 - Draw short segments of the polymers obtained from...Ch. 27 - Prob. 26PCh. 27 - Draw the structure of the monomer or monomers used...Ch. 27 - Prob. 28PCh. 27 - Draw short segments of the polymers obtained from...Ch. 27 - Quiana is a synthetic fabric that feels very much...Ch. 27 - Prob. 31PCh. 27 - Prob. 32PCh. 27 - Poly(vinyl alcohol) is a polymer used to make...Ch. 27 - Five different repeating units are found in the...Ch. 27 - Prob. 35PCh. 27 - A particularly strong and rigid polyester used for...Ch. 27 - Prob. 37PCh. 27 - Which Monomer gives a greater yield of polymer,...Ch. 27 - Prob. 39PCh. 27 - Prob. 40PCh. 27 - Why do vinyl raincoats become brittle as they get...Ch. 27 - The polymer shown below is synthesized by...Ch. 27 - Prob. 43PCh. 27 - How can head-to-head poly(vinyl bromide) be...Ch. 27 - Delrin (polyoxymethylene) is a tough...
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