At room temperature, classify the following materials as elastomers, TP or TS polymers: a) a lightly cross-linked copolymer with Tg = -45 o C b) a branched polypropylene of Tg = -8 o C c) epoxy resin matrix in advanced composites

At room temperature, classify the following materials as elastomers, TP or TS polymers: a) a lightly cross-linked copolymer with Tg = -45 o C b) a branched polypropylene of Tg = -8 o C c) epoxy resin matrix in advanced composites

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter31: Synthetic Polymers

Section31.SE: Something Extra

Problem 21AP

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Question

. At room temperature, classify the following materials as elastomers, TP or TS polymers:
a) a lightly cross-linked copolymer with Tg = -45 o
C
b) a branched polypropylene of Tg = -8 o
C
c) epoxy resin matrix in advanced composites

Definition Definition Polymers with repeating units formed by the combination of two or more types of monomer units. Copolymers improve the properties of plastics and are of high commercial importance. Examples of copolymers include nitrile rubber, acrylonitrile butadiene styrene (ABS).

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