Heat-capacity study of phase transitions in the liquid-crystal racemic 4-(2'-methylbutyl)phenyl-4'-n-nonyloxybiphenyl-4-carboxylate (2M4P9OBC)

Journal Article · Sun May 01 00:00:00 EDT 1983 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.27.2763· OSTI ID:6923715

Viner, J M; Huang, C C

The heat capacity of racemic 4-(2'-methylbutyl)phenyl-4'-n-nonyloxybiphenyl-4-carboxylate (2M4P9OBC) has been measured in the vicinity of SmC-SmI, SmI-SmG, and SmG-SmH phase transitions. The nature of the SmC-SmI transition will be discussed in the context of known microscopic pictures of each phase. In contrast to the continuous SmA-hexatic-B phase transition found in n-hexyl-4'-n-pentyloxybiphenyl-4-carboxylate, an asymmetric heat-capacity anomaly is identified in the SmC-SmI transition of 2M4P9OBC.

• Research Organization: Univ. of Minnesota, Minneapolis
• DOE Contract Number: AC02-79ER10461
• OSTI ID: 6923715
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 27:5; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
CRYSTALS
DATA
EXPERIMENTAL DATA
FLUIDS
HYDROCARBONS
INFORMATION
LIQUID CRYSTALS
LIQUIDS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES