摘要: As a tool for the qualitative description of morphology, electron microscope has enjoyed long use in polymer science, as can be appreciated by examination recent monograph [1]. Similarly, selected area diffraction mode been frequently employed determination unit cell constants and symmetry thin lamellar crystals [2]. This exploits enhanced scattering cross-section matter electrons which enables these plates to examined single [3]. What is not generally that also an instrument quantitative linear crystal structures [4].