Conductivity solubility

Spedding, F.H. andjaffe, S. Conductances, solubilities and ionization constants of some rare earth sulfates in aqueous solutions at 25 , /. Am. Chem. Soc., 76(3) 882-884, 1954. 

While the solubility parameter can be used to conduct solubility studies, it is more informative, in dealing with charged polymers such as SPSF, to employ the three dimensional solubility parameter (A7,A8). The solubility parameter of a liquid is related to the total cohesive energy (E) by the equation 6 = (E/V) 2, where V is the molar volume. The total cohesive energy can be broken down into three additive components E = E j + Ep + Ejj, where the three components represent the contributions to E due to dispersion or London forces, permanent dipole-dipole or polar forces, and hydrogen bonding forces, respectively. This relationship is used... 

Substance Appearance Melting point, °C Electrical conductivity Solubility in water... 

Diaz, A.F., Nguyen, My T., and Leclerc, M. (1995) Electronically conducting soluble polymers. 

Liquid clear amber very irritating odor. D 1.56 (—35C), fp—101C, 1L liquid = 456.8 L gas at 0C and 1 atm. Very low electrical conductivity. Soluble in chlorides and alcohols. Extremely strong oxidizing agent. Slightly soluble in cold water. 

Properties Very soft, silvery metal. D 0.534 (20C), mp 179C, bp 1317C, Mohs hardness 0.6, viscosity of liquid lithium less than water, heat capacity about the same as water. Reacts exothermally with nitrogen in moist air at high temperatures high electrical conductivity soluble in liquid ammonia. 

Properties Hard, brittle, gray solid not found native the ores are scheelite and wolframite. D 19.3 (20C), mp 3410C (highest of all the metals), bp 5927C, high electrical conductivity, soluble in a mixture of nitric acid and hydrogen fluoride, corroded by seawater, oxidizes in air at 400C, the rate increases rapidly with temperature. 

Substitution on polyacetylene reduces the crystallinity of the polymer and also decreases its conductivity. Solubility increases with substitution. 

K. Y. Jen, G. G. Miller, and R. L. Elsenbanmer. Highly Conducting, Soluble, and EnvironmentaUy-Stable Poly(3-Alkylthiophenes). Journal of the Chemical Society-Chemical Communications, (17) 1346-1347, Sep 1 1986. 

In contrast to the behavior of aromatics with H2SO4 and HBF4, when HCl(g) is dissolved in an aromatic compound the solution is colorless and non-conducting. Solubility measurements indicate that a 1 1 complex is formed which, with benzene, may be written as 5 ... 

It has been noted that the polymer of meta- and orfho-substituted anilines is essentially identical (Figure 7.49) [176]. However, there are some differences between these two identical polymers, such as conductivity, solubility, and thermal stability [174,176,177,184,185]. With the success of the rapidly mixed reactions for making polyaniKne nanofibers, we are able to reveal the basic morphologies of substituted polyanilines and compare the effect of substituent positions on the polymer morphology. 

FIGURE 8.16 Atomic force microscopy (AFM) images of the surfaces of PPy-DBSA films cast from solutions in (a) NMP, (b) DBSA/chloroform, and (c) prepared electrochemically. (From Song, K.T., Synthesis of electrically conducting soluble polypyrrole and its characterization. Ph.D. thesis, 2000. With permission.)... 

Source. From Song, K.T., Synthesis of electrically conducting soluble polypyrrole and its characterization. Ph.D. thesis, 2000. 

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