Answered: polyester A PET nylon 6,6 To <0°C Tm =…

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polyester A PET nylon 6,6 To <0°C Tm = 50 °C T, = 70 °C Tm = 265 °C T = 53 °C Tm = 265 °C

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter12: The Liquids And Solids Around Us: Especially Water

Section: Chapter Questions

Problem 43E: A 250-g sample of hard water contains 0.20gofCa(CO3). What is the hardness of the water in parts per...

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Question

Explain the differences observed in the T_g and T_m values for each pair of polymers: (a) polyester A and PET; (b) polyester A and nylon 6,6. (c) How would you expect the T_m value for Kevlar to compare with the T_m value for nylon 6,6? Explain your prediction.

polyester A
PET
nylon 6,6
To <0°C
Tm = 50 °C
T, = 70 °C
Tm = 265 °C
T = 53 °C
Tm = 265 °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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