Double hydrogen bonded ferroelectric liquid crystals: A study of field induced transition (FiT)

Vijayakumar, V. N.; Mohan, M. L. N. Madhu

doi:10.1016/j.ssc.2009.08.014

Cited by 57 publications

(18 citation statements)

References 40 publications

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“…The results of the thermal analyses, the phase transition temperatures of crystalline -nematic, T CrN , and nematic -isotropic, T NI , and enthalpies, ΔH CrN , ΔH NI , of those phase transitions were presented in Table 1. As seen in Table 1, the values of phase transition temperatures and enthalpies obtained in our experiments are approximately similar to the values reported in literatures [8][9][10][11]. Figure 1.b shows the dependence of phase transition temperature on the heating rate for the 6BA/8OBA liquid crystal mixture.…”

Section: Resultssupporting

confidence: 89%

Thermal properties of liquid crystal hexylbenzoic acid/octyloxybenzoic acid mixture

Okumuş

2015

AIP Conference Proceedings

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Abstract. The thermal behaviors of binary mixture formed from hydrogen bonded nematic liquid crystals 4-hexylbenzoic acid and 4-(octyloxy)benzoic acid, were investigated by differential scanning calorimetry (DSC). The phase transition temperatures and enthalpies were determined by using calorimetric methods on DSC. The DSC results clearly indicate that the produced liquid crystal mixture displays liquid crystalline properties. The phase transition temperature values increase with increasing heating rate between 5 ºC/min and 20 ºC/min, and the calculated activation energy values show that the reaction arising during the phase transitions of the mixture is regular.

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Section: Resultssupporting

confidence: 89%

Thermal properties of liquid crystal hexylbenzoic acid/octyloxybenzoic acid mixture

Okumuş

2015

AIP Conference Proceedings

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“…This method was used to analyze infrared spectra for various materials (Vijayakumar and Madhu Mohan 2009;Pongali Sathya Prabu et al 2011). Figure 3 shows the FTIR spectra of ABS/10PNP, ABS/15PNP, and ABS/20PNP.…”

Section: Ftir Characteristicsmentioning

confidence: 99%

Properties of Oil Palm Empty Fruit Bunch-Filled Recycled Acrylonitrile Butadiene Styrene Composites: Effect of Shapes and Filler Loadings with Random Orientation

Nikmatin¹,

Syafiuddin²,

Irwanto³

2016

BioResources

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Exploration of natural resources as composite fillers is still under intensive investigation. Previous works mention that nano-size natural fillers provide an alternative solution to improve certain composite properties compared with macro-and micro-size nanofibers. This work prepared biocomposites formulated from recycled acrylonitrile butadiene styrene (ABS) reinforced by nano powders or long fibers of oil palm empty fruit bunch (OPEFB). Composite properties in terms of density, Fourier transform infrared spectroscopy, surface morphology, melt flow rate, tensile strength, impact strength, and hardness were studied. The density of all composites generally increased with increasing filler loading. Composites with nano powder fillers had lesser voids than those composites with the long fiber. Melt flow rate of all composites fluctuated with filler loadings. Increasing filler loadings for composites with long fiber increased brittleness. By contrast, composites with nano powder fillers were more elastic at the higher filler loading. It was confirmed that impact and hardness properties of the composites with nano powder fillers increased with increasing filler loading. Moreover, composites with long fiber fillers decreased their impact and hardness properties with filler loadings increase.

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“…Optical extinction technique [48] was used for determination of tilt angle. The transition temperatures and corresponding enthalpy values were obtained by DSC (Shimadzu DSC-60, Japan).…”

Section: Methodsmentioning

confidence: 99%

“…The central theme of this work is to study the physical and chemical properties of HBLC formed by alkyl and alkoxy carboxylic acids. With our previous experience [29][30][47][48][49][50][51][52][53][54][55][56][57] in designing, synthesizing liquid crystals and in continuation of our efforts to understand hydrogen bonded mesogens, eight such homologues series designated as mOØn (where n varied from 2 to 8 while m varied from 5 to 12, respectively) can be deduced with changing the alkyl and alkoxy carbon number. A systematic study for 12OØn and 11OØn homologues series has been carried out [58] by the authors.…”

Section: Introductionmentioning

confidence: 99%

Design, synthesis and characterization of a linear hydrogen bonded homologous series exhibiting reentrant smectic C ordering

Kavitha¹,

Mohan²

2012

Journal of Physics and Chemistry of Solids

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Double hydrogen bonded ferroelectric liquid crystals: A study of field induced transition (FiT)

Cited by 57 publications

References 40 publications

Thermal properties of liquid crystal hexylbenzoic acid/octyloxybenzoic acid mixture

Thermal properties of liquid crystal hexylbenzoic acid/octyloxybenzoic acid mixture

Properties of Oil Palm Empty Fruit Bunch-Filled Recycled Acrylonitrile Butadiene Styrene Composites: Effect of Shapes and Filler Loadings with Random Orientation

Design, synthesis and characterization of a linear hydrogen bonded homologous series exhibiting reentrant smectic C ordering

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