Answered: CH3 CH3 CH3 `CH3 CH2 A в D Tg = 82 °C…

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CH3 CH3 CH3 `CH3 CH2 A в D Tg = 82 °C Tg = 211 °C Tg = 169 °C Tg = 99 °C

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter31: Immunochemistry

Section: Chapter Questions

Problem 31.75P

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Question

Consider the following series of poly(phenylene oxide) polymers A–D, and their glass transition temperatures. Explain how the differences in structure can account for the differences in T_g

CH3
CH3
CH3
`CH3
CH2
A
в
D
Tg = 82 °C
Tg = 211 °C
Tg = 169 °C
Tg = 99 °C

Definition Definition Large and very high-molecular-weight substances that consist of hundreds to thousands of repeating units. Polymers are also known as macromolecules. Number-average-molecular weight is the measuring system for the polymers.

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