Abstract

Soon after the Davisson–Germer experiment in 1927, the newly discovered electron diffraction was applied in both reflection and transmission modes to study the structures of linear chain molecules including polymers. Almost 60 years later, polymer physics remains the discipline in which electron diffraction techniques are most commonly used for quantitative crystal structure analysis. With the recent advent of high resolution (ca. 3 Å) electron microscope imaging techniques for organic specimens, diffraction studies of average crystal structure can now be correlated to local specific variations of crystal texture (including defects) as is shown in Volume 1, Chapter 34.

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