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Small‐angle scattering of microparacrystallites (mPC's)
Author(s) -
Hosemann R.,
LobodaČačković J.,
Kaji K.
Publication year - 1978
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889878013825
Subject(s) - scattering , small angle scattering , materials science , physics , optics , chemistry
Two‐dimensional small‐angle X‐ray scattering (SAXS) analysis combined with wide‐angle X‐ray scattering (WAXS) from highly oriented polymers proves that the polymers consist of mosaic blocks with paracrystalline distortions – the so‐called microparacrystallites (mPC's), which are the bricks of a paracrystalline superlattice – the so‐called macroparacrystal (MPC). The concept of meso‐phases fails, because the MPC's show simultaneously both nematic and smectic properties. All this new information cannot be obtained with slit‐smearing cameras and unoriented samples.