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Q1. (a) In each of the following cases (I. to III.) identify which polymer in each pair has the greatest Tg and then explain your selection in terms of molecular structures. Assume that molecular weight differences are insignificant. Note: PMV = pendant molar volume/ cm³/mol Polymer 1 H₂ ・++・ 2²-²-0+. Polymer 3 (PMV=92.3) Pair I Pair II Pair III Polymer 5 (PMV-60.1) OC-CH₂ Polymer 2 -ot. Polymer 4 (143.9) Polymer 6 (PMV=70.3) +++ (b) Consider the following repeat units A and B, state which polymer is likely to be amorphous and which is likely to be semi-crystalline then explain why in terms of the structure of the repeating units.

Q1. (a) In each of the following cases (I. to III.) identify which polymer in each pair has the greatest Tg and then explain your selection in terms of molecular structures. Assume that molecular weight differences are insignificant. Note: PMV = pendant molar volume/ cm³/mol Polymer 1 H₂ ・++・ 2²-²-0+. Polymer 3 (PMV=92.3) Pair I Pair II Pair III Polymer 5 (PMV-60.1) OC-CH₂ Polymer 2 -ot. Polymer 4 (143.9) Polymer 6 (PMV=70.3) +++ (b) Consider the following repeat units A and B, state which polymer is likely to be amorphous and which is likely to be semi-crystalline then explain why in terms of the structure of the repeating units.

Organic Chemistry
Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter5: Alkenes: Bonding, Nomenclature, And Properties
Section: Chapter Questions
Problem 5.31P
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Q1. (a) In each of the following cases (I. to III.) identify which polymer in each pair has the greatest Tg and then explain your selection in terms of molecular structures. Assume that molecular weight differences are insignificant. Note: PMV = pendant molar volume/ cm³/mol Pair I Section A Answer ALL questions in this Section Pair II Pair III Polymer 1 H₂ +²2² 0+. Repeat unit A ht Polymer 3 (PMV=92.3) 3 Polymer 5 (PMV-60.1) tyt OC-CH₂ Polymer 2 | to-0²-0-0 H₂ + -ot Polymer 4 (143.9) (b) Consider the following repeat units A and B, state which polymer is likely to be amorphous and which is likely to be semi-crystalline then explain why in terms of the structure of the repeating units. to *** Polymer 6 (PMV=70.3) Repeat unit B t
Transcribed Image Text:Q1. (a) In each of the following cases (I. to III.) identify which polymer in each pair has the greatest Tg and then explain your selection in terms of molecular structures. Assume that molecular weight differences are insignificant. Note: PMV = pendant molar volume/ cm³/mol Pair I Section A Answer ALL questions in this Section Pair II Pair III Polymer 1 H₂ +²2² 0+. Repeat unit A ht Polymer 3 (PMV=92.3) 3 Polymer 5 (PMV-60.1) tyt OC-CH₂ Polymer 2 | to-0²-0-0 H₂ + -ot Polymer 4 (143.9) (b) Consider the following repeat units A and B, state which polymer is likely to be amorphous and which is likely to be semi-crystalline then explain why in terms of the structure of the repeating units. to *** Polymer 6 (PMV=70.3) Repeat unit B t
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