Crystalline polyethylene has a density of 1000 kg m-3 and amorphous polyethylene a density of 865 kg m-3 . Calculate the volume fraction crystallinity of a sample of branched polyethylene which has a density of 900 kg m-3 . Why is the crystallinity of this sample so low?

Crystalline polyethylene has a density of 1000 kg m-3 and amorphous polyethylene a density of 865 kg m-3 . Calculate the volume fraction crystallinity of a sample of branched polyethylene which has a density of 900 kg m-3 . Why is the crystallinity of this sample so low?

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter22: Organic Chemistry And Biochemistry

Section: Chapter Questions

Problem 9QE

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Question

Crystalline polyethylene has a density of 1000 kg m-3
and amorphous polyethylene a density
of 865 kg m-3
. Calculate the volume fraction crystallinity of a sample of branched polyethylene
which has a density of 900 kg m-3
. Why is the crystallinity of this sample so low?

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