LL ORG CHEM
6th Edition
ISBN: 9781264840083
Author: SMITH
Publisher: MCG
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Chapter 28.8, Problem 21P
Interpretation Introduction
Interpretation: The
Concept introduction: In step-growth
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Thermosetting resins similar to Bakelite (Section 30.7) have also been prepared from renewable feedstocks. One method uses cardinol, the major constituent of the liquid obtained from roasted cashew nutshells. What polymer is obtained when cardinol is treated with formaldehyde (H2C = O) in the presence of a proton source?
Nomex, another aromatic polyamide (compare aramid), is prepared by polymerization
of 1,3-benzenediamine and the diacid chloride of 1,3-benzenedicarboxylic acid. The
physical properties of the polymer make it suitable for high-strength, high-temperature
applications such as parachute cords and jet aircraft tires. Draw a structural formula for
the repeating unit of Nomex.
H,N.
NH2
CI polymerization
Nomex
1,3-Benzenediamine
1,3-Benzene-
dicarbonyl chloride
What polymer is formed when methyl α-methylacrylate [CH 2 C(CH 3)CO2CH 3] is polymerized? This polymer is used in Lucite and Plexiglas, transparent materials that are lighter but more impact resistant than glass.
Chapter 28 Solutions
LL ORG CHEM
Ch. 28.1 - Prob. 1PCh. 28.2 - Prob. 2PCh. 28.2 - Prob. 3PCh. 28.2 - Draw the mechanism for the radical polymerization...Ch. 28.2 - Prob. 8PCh. 28.2 - Prob. 9PCh. 28.2 - Prob. 10PCh. 28.3 - Problem 30.12
What polymer is formed by anionic...Ch. 28.5 - Prob. 12PCh. 28.5 - Prob. 13P
Ch. 28.6 - Problem 30.15
What polyamide is formed from each...Ch. 28.6 - Prob. 19PCh. 28.7 - Prob. 20PCh. 28.8 - Prob. 21PCh. 28.9 - Prob. 22PCh. 28.9 - Prob. 23PCh. 28 - Prob. 24PCh. 28 - Prob. 25PCh. 28 - 30.30 Draw each polymer in Problem 30.29 using the...Ch. 28 - Prob. 44PCh. 28 - 30.49 Draw the products of each reaction.
a. e....Ch. 28 - Prob. 56PCh. 28 - 30.56 Compound A is a novel poly (ester amide)...Ch. 28 - 30.57 Researchers at Rutgers University have...Ch. 28 - 30.58 Melmac, a thermosetting polymer formed from...Ch. 28 - 30.59 Although chain branching in radical...Ch. 28 - Prob. 61P
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- Kodel is a condensation polymer made from terphthalic acid and 1,4-cyclohexandethanol. Write the structure of the resulting polymer.arrow_forwardWhat polymer is formed in this reaction, using polymer notation?arrow_forwardMaleic anhydride reacts with ethylene glycol to produce an alkyd resin. Draw the structure of the condensation polymer produced.arrow_forward
- 12. A way to produce a highly cross-linked polyester is to use glycerol. Alkyd resins are a polymer of this type. The polymer forms tough coatings when baked onto a surface and is in used in automobile paints and large appliances. Draw the structure of the polymer formed from the condensation of one glycerol and three phthalic acid molecules: H₂C-CH-CH₂ COH OH OH OH + сон Glycerol phthalic acidarrow_forwardQuestion 9: Draw the structure of the polymer formed from the addition of the following two monomers: HOOC -COOH + H₂N- O -NH₂arrow_forwardIf a peroxide is added to styrene, the polymer known as polystyrene is formed. If a small amount of 1,4-divinylbenzene is added to the reaction mixture, a stronger and more rigid polymer is formed. Draw a short section of this more rigid polymer.arrow_forward
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