ORG.CHEM EBOOK W/BBWILEY PLUS>CUSTOM<
2nd Edition
ISBN: 9781118872925
Author: Klein
Publisher: JOHN WILEY+SONS INC.CUSTOM
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Question
Chapter 27, Problem 29PP
(a)
Interpretation Introduction
Interpretation:
Identify the repeating unit of the polymer formed and classify as chain-growth or step-growth
Concept introduction:
- Polymers can be classified as chain-growth and step-growth polymers.
- Chain-growth polymers are the one which are formed when monomer is added to the other monomer growing chain one at a time.
- This growing polymer chain usually has only one reactive site. This site is called growth point.
- Step-growth polymers are the one when the monomers react with each other to form oligomers.
- These oligomers are joined together to form polymers. This usually occurs when difunctional monomers are used. This has got two growth points.
To identify: The polymer formed and to determine whether it is step-growth or chain-growth polymer.
(b)
Interpretation Introduction
Interpretation:
Identify the repeating unit of the polymer formed and classify as chain-growth or step-growth polymers.
Concept introduction:
- Polymers can be classified as chain-growth and step-growth polymers.
- Chain-growth polymers are the one which are formed when monomer is added to the other monomer growing chain one at a time.
- This growing polymer chain usually has only one reactive site. This site is called growth point.
- Step-growth polymers are the one when the monomers react with each other to form oligomers.
- These oligomers are joined together to form polymers. This usually occurs when difunctional monomers are used. This has got two growth points.
To identify: The polymer formed and to determine whether it is step-growth or chain-growth polymer.
(c)
Interpretation Introduction
Interpretation:
Identify the repeating unit of the polymer formed and classify as chain-growth or step-growth polymers.
Concept introduction:
- Polymers can be classified as chain-growth and step-growth polymers.
- Chain-growth polymers are the one which are formed when monomer is added to the other monomer growing chain one at a time.
- This growing polymer chain usually has only one reactive site. This site is called growth point.
- Step-growth polymers are the one when the monomers react with each other to form oligomers.
- These oligomers are joined together to form polymers. This usually occurs when difunctional monomers are used. This has got two growth points.
To identify: The polymer formed and to determine whether it is step-growth or chain-growth polymer.
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יווי
10
20
30
40
50
60
70
3.5
3
2.5
2
1.5
1
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3.5
3
2.5
2
1.5
1
6 [ppm]
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2H2S(g)+3O2(g)→2SO2(g)+2H2O(g)
A 1.2mol sample of H2S(g) is combined with excess O2(g), and the reaction goes to completion.
Question
Which of the following predicts the theoretical yield of SO2(g) from the reaction?
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1.2 g
Answer A: 1.2 grams
A
41 g
Answer B: 41 grams
B
77 g
Answer C: 77 grams
C
154 g
Answer D: 154 grams
D
Part VII. Below are the 'HNMR, 13 C-NMR, COSY 2D- NMR, and HSQC 2D-NMR (similar with HETCOR but axes are reversed) spectra of an
organic compound with molecular formula C6H1003 - Assign chemical shift values to the H and c atoms of the
compound. Find the structure. Show complete solutions.
Predicted 1H NMR Spectrum
4.7 4.6 4.5 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1
f1 (ppm)
Predicted 13C NMR Spectrum
100
f1 (ppm)
30
220 210 200 190 180
170
160 150 140 130 120
110
90
80
70
-26
60
50
40
46
30
20
115
10
1.0 0.9 0.8
0
-10
Chapter 27 Solutions
ORG.CHEM EBOOK W/BBWILEY PLUS>CUSTOM<
Ch. 27.2 - Prob. 1CCCh. 27.2 - Prob. 2CCCh. 27.3 - Prob. 3CCCh. 27.3 - Prob. 4CCCh. 27.3 - Prob. 5CCCh. 27.4 - Prob. 1LTSCh. 27.4 - Prob. 6PTSCh. 27.4 - Prob. 7ATSCh. 27.4 - Prob. 8ATSCh. 27.4 - Prob. 9ATS
Ch. 27.4 - Prob. 10ATSCh. 27.4 - Prob. 11CCCh. 27.4 - Prob. 12CCCh. 27.4 - Prob. 2LTSCh. 27.4 - Prob. 13PTSCh. 27.4 - Prob. 14PTSCh. 27.4 - Prob. 15ATSCh. 27.4 - Prob. 16ATSCh. 27.5 - Prob. 17CCCh. 27.5 - Prob. 18CCCh. 27.6 - Prob. 19CCCh. 27.6 - Prob. 20CCCh. 27.8 - Prob. 21CCCh. 27 - Prob. 22PPCh. 27 - Prob. 23PPCh. 27 - Prob. 24PPCh. 27 - Prob. 25PPCh. 27 - Prob. 26PPCh. 27 - Prob. 27PPCh. 27 - Prob. 28PPCh. 27 - Prob. 29PPCh. 27 - Prob. 30PPCh. 27 - Prob. 31PPCh. 27 - Prob. 32PPCh. 27 - Prob. 33PPCh. 27 - Prob. 34PPCh. 27 - Prob. 35PPCh. 27 - Prob. 36PPCh. 27 - Prob. 37PPCh. 27 - Prob. 38PPCh. 27 - Prob. 39PPCh. 27 - Prob. 40PPCh. 27 - Prob. 41PPCh. 27 - Prob. 42PPCh. 27 - Prob. 43IPCh. 27 - Prob. 44IPCh. 27 - Prob. 45IPCh. 27 - Prob. 46CPCh. 27 - Prob. 47CPCh. 27 - Prob. 48CP
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