The difference between liquid and plastic crystals is easily observed in X-ray diffraction.
2.
Plastic crystals possess strong long range order and therefore show sharp Bragg reflections.
3.
Plastic crystals consist usually of almost spherical objects.
4.
Therefore, it is a plastic crystal.
5.
Both purely crystalline and plastic crystal phases could be produced, depending on the aspect ratio of the colloidal particle.
6.
Like liquid crystals, plastic crystals can be considered a transitional stage between real solids and real liquids and can be considered " soft matter ".
7.
By varying the conditions the researchers were able to change the size and distribution of the plastic crystals on the surface, increasing its roughness and making it more water-resistant.
8.
A plastic crystal is a molecular solid with long-range positional order but with constituent molecules retaining rotational freedom; in an orientational glass this degree of freedom is frozen in a quenched disordered state.
9.
An orientational glass is either obtained by quenching a plastic crystal, e . g . cyclohexane, or it is a mixed crystal in which positional disorder causes additional disorder of molecular orientations, e . g.
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