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Journal articles on the topic 'Non-polar'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

J K Pendharkar, J. K. Pendharkar, and Veena Khilnani. "Acoustic Parameters of Polar- Non polar Chemicals at Variable Frequencies." Indian Journal of Applied Research 3, no. 7 (October 1, 2011): 588–90. http://dx.doi.org/10.15373/2249555x/july2013/186.

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2

Ahmed, Hameed M., and Shuja-Aldeen B. Aziz. "Dielectric Properties of Commercial non-Polar Polymers." Journal of Zankoy Sulaimani - Part A 11, no. 1 (April 10, 2008): 1–8. http://dx.doi.org/10.17656/jzs.10175.

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3

Boytsova, O., I. Dovgaliuk, D. Chernyshov, A. Eliseev, P. O'Brien, A. J. Sutherland, and A. Bosak. "Polar and non-polar structures of NH4TiOF3." Journal of Applied Crystallography 52, no. 1 (February 1, 2019): 23–26. http://dx.doi.org/10.1107/s1600576718016606.

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Ammonium oxofluorotitanate, NH4TiOF3, is probably the best known precursor for the synthesis of anatase mesocrystals. Transformation of NH4TiOF3 into TiO2 through thermal decomposition, accompanied by hydrolysis, preserves some structural features of the precursor. Currently, any discussion of the mechanism of this transformation is difficult, as the exact crystal structure of the starting compound is not available and no intermediate structures are known. This article describes the outcome of single-crystal and powder X-ray diffraction studies, revealing the existence of two polymorphs of the parent NH4TiOF3 at different temperatures. A second-order phase transition from the polar Pca21 α phase (1), stable at room temperature, to the Pma2 β phase (2) above ∼433 K has been demonstrated. The direction of the pseudo-fourfold axis in NH4TiOF3 coincides with the orientation of the fourfold axis of anatase mesocrystals, consistent with a topotactical transformation.

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4

Dongmo Foumthuim, Cedrix J., Manuel Carrer, Maurine Houvet, Tatjana Škrbić, Giuseppe Graziano, and Achille Giacometti. "Can the roles of polar and non-polar moieties be reversed in non-polar solvents?" Physical Chemistry Chemical Physics 22, no. 44 (2020): 25848–58. http://dx.doi.org/10.1039/d0cp02948c.

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Using thermodynamic integration, we study the solvation free energy of 18 amino acid side chain equivalents in solvents with different polarities, ranging from the most polar water to the most non-polar cyclohexane.

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5

Omini, M. "Permittivity of Polar Solutions in Non-Polar Solvents." IEEE Transactions on Electrical Insulation EI-20, no. 6 (December 1985): 965–73. http://dx.doi.org/10.1109/tei.1985.348737.

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6

Kucharski, R., M. Zając, R. Doradziński, M. Rudziński, R. Kudrawiec, and R. Dwiliński. "Non-polar and semi-polar ammonothermal GaN substrates." Semiconductor Science and Technology 27, no. 2 (January 19, 2012): 024007. http://dx.doi.org/10.1088/0268-1242/27/2/024007.

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7

Mahmoudinobar, Farbod, Zhaoqian Su, and Cristiano L. Dias. "Thermodynamic Stability of Polar and Non-polar Fibrils." Biophysical Journal 114, no. 3 (February 2018): 414a. http://dx.doi.org/10.1016/j.bpj.2017.11.2295.

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8

Engelhardt, H., R. Grüner, and M. Scherer. "The polar selectivities of non-polar reversed phases." Chromatographia 53, S1 (January 2001): S154—S161. http://dx.doi.org/10.1007/bf02490322.

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9

Kim, Kwang Soo, Kwang Ho Ahn, Jae Ro Park, and Hyun Jung Kim. "Development of Cellulosic Fiber Filter Using Replacement Liquid in Water-Swollen Fiber with Non-Polar Solvent." Journal of Korean Society of Environmental Engineers 35, no. 10 (October 30, 2013): 743–48. http://dx.doi.org/10.4491/ksee.2013.35.10.743.

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10

Pykacz, Henryk, and Zbigniew Czapla. "Coexistence of polar and non-polar phases in ND4DSeO4crystals." Ferroelectrics Letters Section 7, no. 3 (May 1987): 61–65. http://dx.doi.org/10.1080/07315178708200516.

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11

Zhang, Chao, and Gary Stevens. "The Dielectric Response of Polar and Non-Polar Nanodielectrics." IEEE Transactions on Dielectrics and Electrical Insulation 15, no. 2 (April 2008): 606–17. http://dx.doi.org/10.1109/tdei.2008.4483483.

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12

Pauli, S. A., and P. R. Willmott. "Conducting interfaces between polar and non-polar insulating perovskites." Journal of Physics: Condensed Matter 20, no. 26 (June 9, 2008): 264012. http://dx.doi.org/10.1088/0953-8984/20/26/264012.

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13

de Leeuw, S. W., C. P. Williams, and B. Smit. "Local compositions and thermodynamics of polar/non-polar mixtures." Fluid Phase Equilibria 48 (September 1989): 99–109. http://dx.doi.org/10.1016/0378-3812(89)80196-7.

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14

Biegelsen, D. K., R. D. Bringans, and J. E. Northrup. "Heteroepitaxial growth of polar semiconductors on non-polar substrates." Materials Science and Engineering: B 14, no. 3 (August 1992): 317–31. http://dx.doi.org/10.1016/0921-5107(92)90315-z.

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15

Reddy, Pramod, Isaac Bryan, Zachary Bryan, James Tweedie, Ronny Kirste, Ramon Collazo, and Zlatko Sitar. "Schottky contact formation on polar and non-polar AlN." Journal of Applied Physics 116, no. 19 (November 21, 2014): 194503. http://dx.doi.org/10.1063/1.4901954.

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16

Rawat, Bachan S., and Indar B. Gulati. "Cohesive energy density of polar and non-polar liquids." Journal of Applied Chemistry and Biotechnology 27, no. 3 (May 29, 2007): 459–64. http://dx.doi.org/10.1002/jctb.5020270306.

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17

S. Dodsworth, Elaine, and A. B. P. Lever. "Solvatochromism of non-polar complexes." Coordination Chemistry Reviews 97 (January 1990): 271–84. http://dx.doi.org/10.1016/0010-8545(90)80095-b.

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18

Swinton, F. L. "Mixtures of non-polar molecules." Pure and Applied Chemistry 59, no. 1 (January 1, 1987): 35–44. http://dx.doi.org/10.1351/pac198759010035.

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19

Yuan, Peihong, Mustafa Cemil Coskun, and Gerhard Kramer. "Polar-Coded Non-Coherent Communication." IEEE Communications Letters 25, no. 6 (June 2021): 1786–90. http://dx.doi.org/10.1109/lcomm.2021.3061650.

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20

Antol, Ivana, Mirjana Eckert-Maksić, Mario Vazdar, Matthias Ruckenbauer, and Hans Lischka. "QM/MM non-adiabatic decay dynamics of formamide in polar and non-polar solvents." Physical Chemistry Chemical Physics 14, no. 38 (2012): 13262. http://dx.doi.org/10.1039/c2cp41830d.

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21

Nargund, Achala, and Asha C. S. "Analysis of flow of polar and non polar incompressible ferrofluids." JOURNAL OF ADVANCES IN PHYSICS 10, no. 2 (August 30, 2015): 2733–40. http://dx.doi.org/10.24297/jap.v10i2.1333.

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In this paper, flow between two parallel plates is analyzed for both polar and non polarÂ ferrofluids. Velocity is obtained without pressure gradient for polar fluid and with pressure gradient forÂ non polar fluid. The solution of the spin velocity is found in terms of applied magnetic field and magneticÂ flux density for polar fluid. Shear stress is calculated for both polar and non polar ferrofluid.

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22

Depaepe, J. M., and J. P. Ryckaert. "Isomerization of 1,2-dichloroethane in polar and non-polar solvents." Chemical Physics Letters 245, no. 6 (November 1995): 653–59. http://dx.doi.org/10.1016/0009-2614(95)01039-c.

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23

Li, Anyin, He Wang, Zheng Ouyang, and R. Graham Cooks. "Paper spray ionization of polar analytes using non-polar solvents." Chemical Communications 47, no. 10 (2011): 2811. http://dx.doi.org/10.1039/c0cc05513a.

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24

Wang, Chen, Li-Ping Liu, and Charles M. Deber. "Helicity of hydrophobic peptides in polar vs. non-polar environments." Physical Chemistry Chemical Physics 1, no. 7 (1999): 1539. http://dx.doi.org/10.1039/a807445c.

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25

Oka, Asako, and Keisuke Tominaga. "Terahertz spectroscopy of polar solute molecules in non-polar solvents." Journal of Non-Crystalline Solids 352, no. 42-49 (November 2006): 4606–9. http://dx.doi.org/10.1016/j.jnoncrysol.2006.03.122.

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26

Jonsson, Mats, Johan Lind, Gábor Merényi, and Trygve E. Eriksen. "Remote substituent effects on polar and non-polar covalent bonds." J. Chem. Soc., Perkin Trans. 2, no. 10 (1994): 2149–54. http://dx.doi.org/10.1039/p29940002149.

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27

Kumar, Ashok, and Hitesh Borkar. "Flexoelectricity in Bulk and Nanoscale Polar and Non-Polar Dielectrics." Solid State Phenomena 232 (June 2015): 213–33. http://dx.doi.org/10.4028/www.scientific.net/ssp.232.213.

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Piezoelectricity (PE) is defined as the polarization under homogeneous application of stress on polar/non-centrosymmetry/no-inversion symmetry dielectrics, whereas it has been commonly accepted that flexoelectricity (FLX) is the induced polarization due to strain gradient in any polar/nonpolar dielectrics, the latter effect is universal and can be generated in any materials under inhomogeneous stress. Flexoelectricity is inversely proportional to the size of materials and devices which further suggests that giant FLX effects may develop in nanoscale materials. Flexoelectricity represents the polarization due to strain gradient and have significant effects on the functional properties of nanoscale materials, epitaxial thin films, one-dimensional structure with various shape and size, liquid crystals, polymers, nanobio-hybrid materials, etc. Till late sixties, very few works on flexoelectricity have been reported due to very weak magnitude compared to piezoelectricity. Advancement in nanoscale materials and device fabrication process and highly sophisticated electronics with detection of data with high signal to noise ratio lead the scientists/researchers to get several orders of higher flexoelectric coefficients compared to the proposed theoretical limits. Recently, giant FLX have been observed in nanoscale materials and their magnitudes are six to seven orders larger than the theoretical limits. In this review article, we describe the basic mechanism of flexoelectricity, brief history of discovery, theoretical modeling, experimental procedures, and results reported by several authors for bulk and nanoscale ferroelectric and dielectric materials.

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28

Smedartchina, Z. "Photoisomerization through a “funnel” in polar and non-polar solvents." Chemical Physics Letters 113, no. 3 (January 1985): 307–10. http://dx.doi.org/10.1016/0009-2614(85)80266-9.

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29

Evale, Dr Basavaraj G. "Reduction in fluorescence intensity and lifetime of Coumarin derivative MFBMC with an increase in temperature in non-polar and polar solvents." Indian Journal of Applied Research 4, no. 4 (October 1, 2011): 9–12. http://dx.doi.org/10.15373/2249555x/apr2014/166.

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30

Al-Tawhid, A. H., and D. P. Kumah. "Correlating polar distortions and interfacial charge at the polar/non-polar LaCrO3/SrTiO3 (001) interface." AIP Advances 10, no. 4 (April 1, 2020): 045132. http://dx.doi.org/10.1063/5.0002298.

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31

Monder, Hila, Leo Bielenki, Hanna Dodiuk, Anna Dotan, and Samuel Kenig. "Poly (Dimethylsiloxane) Coating for Repellency of Polar and Non-Polar Liquids." Polymers 12, no. 10 (October 21, 2020): 2423. http://dx.doi.org/10.3390/polym12102423.

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The wettability of poly (dimethylsiloxane) (PDMS) coating on plasma-treated glass was studied at room temperature using polar and non-polar liquids. The wettability was investigated regarding the liquids’ surface tensions (STs), dielectric constants (DCs) and solubility parameters (SPs). For polar liquids, the contact angle (CA) and contact angle hysteresis (CAH) are controlled by the DCs and non-polar liquids by the liquids’ STs. Solubility parameter difference between the PDMS and the liquids demonstrated that non-polar liquids possessed lower CAH. An empirical model that integrates the interfacial properties of liquid/PDMS has been composed. Accordingly, the difference between the SPs of PDMS and the liquid is the decisive factor affecting CAH, followed by the differences in DCs and STs. Moreover, the interaction between the DCs and the SPs is of importance to minimize CAH. It has been concluded that CAH, and not CA, is the decisive attribute for liquid repellency of PDMS coating.

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32

Буртная, Инесса Анатольевна, Отар Отарович Гачечиладзе, Людмила Ивановна Ружинская, and Михаил Михайлович Мурашко. "Diffusion of polar and non-polar molecules in a polymer membrane." Eastern-European Journal of Enterprise Technologies 1, no. 6(67) (February 7, 2014): 17. http://dx.doi.org/10.15587/1729-4061.2014.20162.

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33

Literathy, P. "Polar and non-polar aromatic micropollutants in water (drinking-water) resources." Water Supply 1, no. 4 (June 1, 2001): 149–57. http://dx.doi.org/10.2166/ws.2001.0079.

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Aromatic compounds are important contaminants that limit the intended uses of water resources. Both polar and non-polar substances, such as phenols, aromatic sulfonates, lignin-sulfonic acids, humic and fulvic substances (acids) and mono- and poly-aromatic hydrocarbons, their alkyl-substituted derivatives, respectively, are among the potential aromatic micropollutants. During the last 5 - 10 years, an analytical approach has been developed on the basis of total fluorescence measurement of the original water sample and its organic solvent (cyclohexane) extract. It has been demonstrated and verified that polar aromatic compounds fluoresce only in the original water sample, whereas non-polar (hydrophobic) compounds fluoresce in an organic solvent (e.g. cyclohexane) extract. During extraction, polar compounds remain in the water sample. This method has been used in a country-wide survey in drinking water aquifers, as well as in several environmental impact assessment studies, particularly for petroleum-related pollution. It is a very convenient method to determine the naturally occurring humic and fulvic substances in water and has proved to be an appropriate substitute of the infrared spectrophotometric method for oil pollution assessment in the environment, also having the advantage of signalling more harmful, toxic aromatic petroleum hydrocarbons.

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34

Chagarov, Evgueni A., and Andrew C. Kummel. "Formation mechanisms of polar and non-polar amorphous oxide–semiconductor interfaces." Surface Science 602, no. 13 (July 2008): L74—L78. http://dx.doi.org/10.1016/j.susc.2008.04.026.

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35

Ding, Yong, and Zhong Lin Wang. "Profile imaging of reconstructed polar and non-polar surfaces of ZnO." Surface Science 601, no. 2 (January 2007): 425–33. http://dx.doi.org/10.1016/j.susc.2006.07.063.

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36

Ichino, Toshihiro. "Dual-phase polymer electrolyte prepared from polar and non-polar latices." Colloids and Surfaces A: Physicochemical and Engineering Aspects 153, no. 1-3 (August 1999): 567–74. http://dx.doi.org/10.1016/s0927-7757(98)00478-6.

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37

Parker, T. M., N. G. Condon, R. Lindsay, F. M. Leibsle, and G. Thornton. "Imaging the polar and non-polar surfaces of ZnO with STM." Surface Science 415, no. 3 (October 1998): L1046—L1050. http://dx.doi.org/10.1016/s0039-6028(98)00563-9.

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38

Zhang, He, Junming Sun, Changjun Liu, and Yong Wang. "Distinct water activation on polar/non-polar facets of ZnO nanoparticles." Journal of Catalysis 331 (November 2015): 57–62. http://dx.doi.org/10.1016/j.jcat.2015.08.016.

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39

Libbrecht, K. G., T. Crosby, and M. Swanson. "Electrically enhanced free dendrite growth in polar and non-polar systems." Journal of Crystal Growth 240, no. 1-2 (April 2002): 241–54. http://dx.doi.org/10.1016/s0022-0248(01)02089-9.

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40

Andrew, Charles D., Simon Penel, Gareth R. Jones, and Andrew J. Doig. "Stabilising Non-Polar/Polar Side Chain Interactions in the α-Helix." Biochemical Society Transactions 28, no. 3 (June 1, 2000): A72. http://dx.doi.org/10.1042/bst028a072c.

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41

GOLLER, JEFFREY W. "Displacement of Polar by Non-Polar Organic Vapors in Sampling Systems." American Industrial Hygiene Association Journal 46, no. 3 (March 1985): 170–73. http://dx.doi.org/10.1080/15298668591394590.

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42

Sung, T. H., J. C. Huang, and H. C. Chen. "Mechanical response of polar/non-polar ZnO under low dimensional stress." Applied Physics Letters 102, no. 24 (June 17, 2013): 241901. http://dx.doi.org/10.1063/1.4811554.

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43

Outcalt, Stephanie L., and Arno Laesecke. "Compressed-liquid densities of two highly polar+non-polar binary systems." Journal of Molecular Liquids 173 (September 2012): 91–102. http://dx.doi.org/10.1016/j.molliq.2012.06.014.

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44

Bartoš, I., O. Romanyuk, J. Houdkova, P. P. Paskov, T. Paskova, and P. Jiříček. "Electron band bending of polar, semipolar and non-polar GaN surfaces." Journal of Applied Physics 119, no. 10 (March 14, 2016): 105303. http://dx.doi.org/10.1063/1.4943592.

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45

Sakwe, Sakwe Aloysius, Yeon Suk Jang, and Peter J. Wellmann. "Defect Etching of Non-Polar and Semi-Polar Faces in SiC." Materials Science Forum 556-557 (September 2007): 243–46. http://dx.doi.org/10.4028/www.scientific.net/msf.556-557.243.

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Wet chemical etching using molten KOH is the most frequently applied method to reveal structural defects in SiC. Until now etching kinetics of SiC in planes different from the polar cplane has not been reported. In this paper we report on defect etching of SiC in non-polar faces. Using a calibrated KOH defect-etching furnace with possibilities to set accurate etching temperatures we have etched SiC samples of various orientations to (i) study defect occurrence and their morphologies (ii) set KOH defect etching parameters for SiC for these orientations and (iii) investigate etching kinetics in relation to anisotropy/surface polarity. For non-polar planes of the same orientations a comparison in etching kinetics and defect morphologies in crystals grown in different directions is presented.

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46

Zaini, Sabeeh Jalil. "Calorimetric Study of N-methylacetamide in Polar and Non-Polar Solvents." Journal of Al-Nahrain University Science 15, no. 2 (June 1, 2012): 17–22. http://dx.doi.org/10.22401/jnus.15.2.02.

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47

Boublík, Tomás̆. "Perturbation theory for mixtures of polar and non-polar anisotropic molecules." Fluid Phase Equilibria 73, no. 3 (May 1992): 211–24. http://dx.doi.org/10.1016/0378-3812(92)80011-w.

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48

Oka, A., G. Sinha, C. Glorieux, and J. Thoen. "Broadband dielectric studies of weakly polar and non-polar liquid crystals." Liquid Crystals 31, no. 1 (January 2004): 31–38. http://dx.doi.org/10.1080/02678290310001611968.

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49

Wang, L. W., D. Radford, K. Y. Cho, and N. G. Nair. "Spectrophotometric determination of polar and non-polar lipids in oleaginous yeast." World Journal of Microbiology & Biotechnology 9, no. 3 (May 1993): 350–52. http://dx.doi.org/10.1007/bf00383078.

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50

Amilusik, M., T. Sochacki, B. Lucznik, M. Fijalkowski, J. Smalc-Koziorowska, J. L. Weyher, H. Teisseyre, B. Sadovyi, M. Bockowski, and I. Grzegory. "Homoepitaxial HVPE-GaN growth on non-polar and semi-polar seeds." Journal of Crystal Growth 403 (October 2014): 48–54. http://dx.doi.org/10.1016/j.jcrysgro.2014.06.012.

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