Next Article in Journal
Dinitrogen and Related Chemistry of the Lanthanides: A Review of the Reductive Capture of Dinitrogen, As Well As Mono- and Di-aza Containing Ligand Chemistry of Relevance to Known and Postulated Metal Mediated Dinitrogen Derivatives
Next Article in Special Issue
Correction: Goto, H. et al. Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group. Materials 2009, 2, 22-37
Previous Article in Journal
Biphasic Calcium Phosphate Ceramics for Bone Regeneration and Tissue Engineering Applications
Previous Article in Special Issue
Carbon Nanotube-Reinforced Thermotropic Liquid Crystal Polymer Nanocomposites
Open AccessArticle

Probing the Texture of the Calamitic Liquid Crystalline Dimer of 4-(4-Pentenyloxy)benzoic Acid

1
Department of Chemistry, University of Central Florida, P.O. Box 162366, Orlando, FL 32816- 2366, USA
2
CREOL, The College of Optics and Photonics, University of Central Florida, P.O. Box 162366, Orlando, FL 32816-2366, USA
*
Author to whom correspondence should be addressed.
Materials 2010, 3(2), 827-840; https://doi.org/10.3390/ma3020827
Received: 22 December 2009 / Revised: 20 January 2010 / Accepted: 21 January 2010 / Published: 29 January 2010
(This article belongs to the Special Issue Liquid Crystals)
The liquid crystalline dimer of 4-(4-pentenyloxy)benzoic acid, a member of the n-alkoxybenzoic acid homologous series, was synthesized using potassium carbonate supported on alumina as catalyst. The acid dimer complex exhibited three mesophases; identified as nematic, smectic X1 and smectic X2. Phase transition temperatures and the corresponding enthalpies were recorded using differential scanning calorimetry upon both heating and cooling. The mesophases were identified by detailed texture observations by variable temperature polarized light microscopy. The nematic phase was distinguished by a fluid Schlieren texture and defect points (four and two brushes) while the smectic phases were distinguished by rigid marble and mosaic textures, respectively. View Full-Text
Keywords: liquid crystalline texture; nematic phase; smectic phase liquid crystalline texture; nematic phase; smectic phase
Show Figures

Figure 1

MDPI and ACS Style

Qaddoura, M.A.; Belfield, K.D. Probing the Texture of the Calamitic Liquid Crystalline Dimer of 4-(4-Pentenyloxy)benzoic Acid. Materials 2010, 3, 827-840.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop