132% at 795 degrees C compared to 97.655% at 685 degrees C of untreated bamboo-epoxy composite. Water absorption in the composites was studied by long term immersion and 2 h boiling in distilled water. The process of water absorption indicates Fickian mode of diffusion. MAA treatment results in reduced water uptake. There was improvement in the properties of pretreated CT99021 ic50 bamboo-polyester matrix composite as well. Three percent treatment of bamboo with MAA gave optimum results
with polyester resin. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 118: 1006-1013, 2010″
“We have recently demonstrated that coprecipitation of cimetidine (C) and piroxicam (P) at a mole ratio of 1:1 results in the transformation of the crystalline forms of both drugs to an amorphous state. In this study, coprecipitates and physical mixtures of cimetidine and piroxicam were further investigated at C/P mole ratios of 1:10, 1:5, 1:4, 1:2, 10:1, 20:1, 30:1, 40:1, and 52.5:1, the latter being the composition of a clinically used dosage. The physicochemical
properties of these MRT67307 price samples were examined using X-ray diffraction and Fourier transform infrared spectroscopy. Additionally, dissolution of piroxicam in the samples at C/P mole ratios of 10:1, 20:1, 30:1, 40:1, and 52.5:1 was investigated at pH 1.2 and pH 4. In coprecipitates with C/P mole ratios of 10:1, 20:1, 30:1, and 40:1, crystalline forms of both drugs were transformed to amorphous states. A mixture of an amorphous state and cimetidine
LY2090314 purchase crystalline form A was observed for the coprecipitate with a C/P mole ratio of 52.5:1. For the coprecipitates with C/P mole ratios of 1:2, 1:4, 1:5, and 1:10, cimetidine form A was transformed to form C, whereas piroxicam form II was modified to form I. It is interesting that small molecules, instead of polymers or solvents, can cause such crystal structure transformations. The dissolution of piroxicam at pH 4 is lower than that at pH 1.2. Additionally, the coprecipitates and physical mixtures with C/P mole ratios of 10:1, 20:1, 30:1, 40:1, and 52.5:1 demonstrate substantially higher dissolution of piroxicam compared to that of drug alone.”
“Electric-field and/or temperature induced phase transitions were observed using polarizing light microscope on -oriented Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) (PMN-0.3PT) single crystals with electric fields applied along the  and  directions, respectively. The monoclinic (M) and tetragonal (T) phases were observed with electric field applied along the  direction at 5 and 9 kV/cm, respectively. The orthorhombic (O) and T were observed with 5 kV/cm and 10 kV/cm electric field applied along the  direction, respectively. The intermediate phases [M and/or O phase (s)] were also confirmed by the temperature-dependent dielectric behavior. (C) 2010 American Institute of Physics. [doi:10.1063/1.