T. Deneve et al., STUDY OF THE WORM TEXTURE IN A NEMATIC POLYMER, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 316(8), 1993, pp. 1037-1044
The defects of the worm texture of a nematic liquid crystalline polyme
r are studied by scanning electron microscopy. The observed surfaces a
re first prepared by ultramicrotoming, then etched with acid or reveal
ed by polyethylene vaporization. The preliminary observations reveal t
he existence of half-integer twist disclination loops lying inside the
shearing plane.