[PDF] Top 20 Synthesis and characterization of low-melting thermotropic liquid crystalline poly(ester-imide)s.

... words, not only do the molecules lie as the Cholesteric behavior by cholesteric In the of The pitch of the lyotropic systems, can be induced in an the addition of small-molecule chiral p[r] ... See full document

... The spectroscopic techniques confirm the synthesis whereas a thermal and mechanical characterization shows elastic and spontaneous nature of LCE. This is a unique property where a macroscopic shape change ... See full document

... of thermotropic random copolyester has been recognized and several workers have reported the synthesis and characterization of various copolyester which exhibit different mesophase in the ...the ... See full document

... Two samples of Cu/Mn mixed oxides were prepared by mixing calculated amounts of copper and manganese nitrates with different proportions of glycine [25]. The mixed precursors were concentrated in a porcelain crucible on ... See full document

... nanoparticles transformed from tetragonal to cubic phase at room temperature with the critical crystallite size of approximately 40 nm due to the size effect [7]. One- dimensional, stable ferroelectric monodomain was ... See full document

... relatively low setting time compared with MTA, which is very suitable for replacement of MTA dental material as it has the same chemical composition and bioactivity (Chen et ... See full document

... the low diffraction angle of 2θ < 10° and a halo at 2θ = 15–35° are known as XRD characteristics, peculiar to crystalline SiO 2 with silanol (Si–OH) groups, ... See full document

... The catalytic performance of the crystalline molecular sieves for cumene cracking has been investigated. The device diagram was shown in Figure 7. Before the reaction, the samples were activated at the temperature ... See full document

... ILA synthesis is a hydrophilic compound and absorbs water ...ionic liquid strongly absorbs the water molecules in air, changing the water content in the synthetic ...ILA synthesis of TON zeolite is a ... See full document

... Synthesis of 1,1-((1,3 Phenylenebis (Azanediyl)) Bis (2-Oxoethane-2,1- diyl))Bis(4,5-Dihydro-1H-1,2,3-Triazole-4- Carbonyl Chloride) [VI] and 1,1- ((1,3 Phenylenebis (Azanediyl)) Bis (2- Oxoethane-2,1-diyl)) Bis ... See full document

... The surface morphology, chemical composition and the microstructure of the films were investigated with a LEO 1530VP field emission scanning electron microscope (FE-SEM) operating in low vacuum mode at an ... See full document

... A cases where to an said to T,c^i is wide T|C_>j is moldable 21 or liquid, sufficiently below crystalline the glass crystallinity isotropic optimum phase the temperature far liquid Tm tr[r] ... See full document

... method [10]. Zn and SnO mixed powders (2:1 in molar ratio) were positioned in a ceramic boat, which was loaded into the center of the tube. The furnace was heated at a rate of 80°C/min up to and maintained at 800°C, ... See full document

... cholesteric thermotropic liquid crystalline copolyesters was tested in aprotic solvents like dimethyl acetamide (DMAC), dimethyl sulphoxide (DMSO), di- methyl formamide (DMF) and ... See full document

... liquid nitrogen cooling accessory. Heating and cooling rates were 10 °C per minute. Thermal transition reports were collected during the second heating and cooling scans. Thermogravimetric analysis was performed ... See full document

... The SEM micrographs of the copolyesters, fibers resulted from the blend solutions of polymer and PVC, polymer PVC are shown here. The SEM images of the fibers before and after irradiation to UV light illustrates the ... See full document

... Considering the high commercial potential of aliphatic-aromatic copolyesters and their interesting properties, the present investigation deals with the synthesis and characterisation of certain random ... See full document

... combustion synthesis [6-8] and hydrothermal synthesis ...the crystalline grains grow larger in size and weakens the reactivity, and hence obtaining nanosized particles is ...and low ... See full document

... (2) Reaction duration effect: A series of synthesis trials were carried out with the reaction time of 5, 6, 9, 10.5 and 12 h at 1,500°C reaction temperature and 1 atm chamber pressure with a 200 sccm continuous ... See full document

... is liquid crystallain behavior, Transition temperatures and phase characterization were studied by differential scanning calorimetry (DSC) and polarizing optical microscope (POM) ... See full document