Stability, occurence and step morphology of polymorphs and polytypes of stearic acid

Oblique Infrared Transmission Spectroscopic Study on the E .fwdarw. C and B .fwdarw. C Phase Transitions of Stearic Acid: Effects of Polytypic Structure

“…Several years ago, we studied the B -*• C transition. 21 In these experiments, single-crystal specimens changed to a polycrystalline state and lost their transparency. Therefore, X-ray diffraction and vibrational spectroscopic methods could not be used to investigate the orientation of the resultant C crystal.…”

Mechanical, Swelling, and Structural Properties of Mechanically Tough Clay-Sodium Polyacrylate Blend Hydrogels

“…The nanocomposite hydrogels have potential applications in fields such as biomedical engineering and electronic devices [1]. Nanocomposite hydrogels are prepared by free-radical polymerization of alkylacrylamide in the presence of clay particles, e.g., they are extraordinarily stretchable (~1500%) and mechanically tough [2][3][4]. In recent years, we have found that blend hydrogels composed of clay and sodium polyacrylate (PAAS) prepared by simple mixing did not fracture even after 90% compression tests or twisting of the gels [5,6].…”

Inelastic neutron scattering study on the polytypism of even-numbered -alkanes

“…Polytypism has been found in some long-chain compounds such as n-alkanes [4][5][6][7][8], nalcohols [9,10], n-fatty acids [11][12][13], and cismonounsaturated fatty acids [14]. The researches on the polytypism in fatty acids have revealed that polytypism significantly affects the thermodynamic 11.242 and mechanical properties [8,[15][16][17], and solid-solid phase transition mechanisms [18,19].…”