Structures and Thermal Properties

Frenkel D, Mooij GAM and Smit B 1992 Novel scheme to study structural and thermal properties of continuously deformable molecules J. Phys. Oondens. Matter4 3053-76... 

Mitzi, D. B. 2005. Synthesis, structure, and thermal properties of soluble hydrazinium germanium(IV) and tin(IV) selenide salts. Inorg. Chem. 44 3755-3761. 

Moisture. Absorbed and retained moisture, especially as ice, has a significant effect on the structural and thermal properties of insulation materials. Most closed-cell plastic foams have low permeance properties most notably where natural or bonded low permeance surface skins exist (29,30). Design, building, and construction practices require adequate vapor retarders, skins, coatings, sealants, etc, in order to prevent the presence of moisture. However, moisture vapor cannot be completely excluded, thus the possibility of moisture absorption and retention is always present. The freezing of moisture and rupturing of cells result in permanent reduction of thermal and structural performance. 

S. Curgul et al Molecular dynamics simulation of size-dependent structural and thermal properties of polymer nanofiber. Macromolecules 40, 8483-8489 (2007)... 

A mixture of molybdenum hexacarbonyl and 4-chlorophenol is effective in performing al-kyne metathesis of dipropynylated dialkylbenzenes. Alkyne metathesis of these precursors leads to the clean formation of dialkyl poly( paraphenyleneethynylene)s (PPEs) in high yield and with high molecular weights. This facile yet effective access to the PPEs has allowed study of their spectroscopic, structural, and thermal properties. While PPEs have been made before, the dialkyl-PPEs turned out to have particularly interesting optical and liquid-crystalline properties that can be explained in terms of the conformation of the main chains. The PPEs have also been utilized to construct light-emitting diodes and other semiconductor devices. This chapter discusses the interplay of structure, chromicity, and electronic properties of the dialkyl-PPEs. 

Structure and Thermal Properties Amorphous Polymers and the Glass Transition Crystallinity and Melting Density... 

Fio. 11. Structure and thermal properties of ferric oxide-alumina catalysts prepared by the SHOP method and their catalytic activities for polymerization of ethylene oxide as a function of the chemical composition. 

Structures and Thermal Properties of Liquid-Crystalline Poly (ester- co -carbonate)... 

The similar dilute solution viscosity data in Table 1 suggested that the differences of molecular weight among them were not large, so the comparisons of structures and thermal properties of these copolymers would be regarded as significant... 

J. I. Siepmann (1990) A method for the direct calculation of chemical-potentials for dense chain systems. Mol. Phys., 70, pp. 1145-1158 D. Frenkel, G. C. A. M. Mooij, and B. Smit (1992) Novel scheme to study structural and thermal-properties of continuously deformable molecules. J. Phys. Condens. Matter 4, pp. 3053-3076 M. Laso, J. J. dePablo, U. W. Suter (1992) Simulation of phase-equilibria for chain molecules. J. Chem. Phys. 97, pp. 2817-2819... 

A parameter that has been widely used in the study of the structure and thermal properties of solid organic materials (13-16) and particularly coals (14-16) is the NMR second moment. To compute such a parameter from our solid echo data requires its Fourier transformation from the time domain to obtain a complex frequency domain NMR spectrum, i.e. g (v) u (v) + iv (v). The quadrature components of this spectrum represent linear combinations of the pure absorptive (u(v)) and dispersive (v(v)) modes of the true spectrum, i.e,... 

There are several reports in the literature describing the effect of chemical structure on the observed thermal properties of lignin. " In the thermal processing of lignin for structural applications, the relationship between chemical structure and thermal properties is of extreme importance. Differential scanning calorimetric (DSC) analysis of HKL and SKL is shown in Fig. 3. The glass transition temperature (Tg) of the HKL appears at 93 "C, much lower than that of the SKL, ID C. 

Recently, PCL containing bovine bone hydroxyapatite (HA) and hydroxyapa-tite/Ag (HA-Ag) composite nanoflbers were prepared via an electrospinning process [43]. The morphology, structure and thermal properties of the PCL, PCL/HA, and PCL/HA-Ag composite nanoflbers before and after immersion in SBF were characterized. SEM images revealed that the nanoflbers were well-oriented and incorporated the HA-Ag nanoparticles well. Mechanical study revealed that the yield stress of PCL/HA-Ag composite nanoflbers showed a higher value than that of PCL/HA composite, possibly due to the addition of metallic Ag nanoparticles [43]. 

Schreiter ER, Stevens JE, Ortwerth MF (1999) Gold compounds as ionic liquids synthesis, structures, and thermal properties of n, n-diaUsylimidazolium tetrachloroaurate salts. Inorg Chem 38 3935-3940... 

A comparison of the photooxidative behavior of PP/LDH and PP/MMt nanocomposites was reported [117], as well as structure and thermal properties of these nanocomposites. It appeared that the PP/LDH nanocomposites had an exfoliated structure and the LDH layers were well dispersed in the PP matrix. The photooxidation rate of PP/LDH was much lower than that of PP and PP/MMt samples, indicating a better UV stability for PP/LDH nanocomposites. 

Frenkel D D, C A M Mooij and B Smit 1991 Novel Scheme to Study Structural and Thermal Properties of Continuously Deformable Materials. Journal of Physics Condensed Matter 3 3053-3076. 

The development of volatile compounds of alkaline-earth metals has attracted attention because of the need for these compounds as precursors for the preparation of thin films by chemical gas phase methods. Hatanpaa and coworkers [200] characterized the effect of ancillary ligands on the structural and thermal properties of several [Mg(thd)2(A)] complexes, in which A is a neutral Lewis-base ligand. They showed that the evaporation processes of diamine adducts contain two overlapping steps, the first step associated with the evaporation of amine and the second with the evaporation of [Mg2(thd)4] dimer. All the complexes containing amines evaporated almost completely, but the complex which contained 1,2-ethanediol, was thermally unstable and decomposed when heated. At temperatures below the dissociation temperature, all adducts of diamines appeared to evaporate intact. 

Y. Matsuo, K. Tahara, and Y. Sugie, Structure and thermal properties of poly(ethylene oxide)-intercalated graphite oxide. Carbon, 35 113-120 (1997). 

Petersson, L., Kvien, I., Oksman, K., Structure and thermal properties of poly(lactic acid)/cellulose whiskers nanocomposite materials. Composites Science and Technology. 11-12, 2535-2544 (2007), DOI http //dx.doi.0rg/lO.lOl6/j.compscitech.2006.12.012. 

Further characterization such as differential scanning calorimetry (DSC) using a thermal analyzer was performed to understand the structural and thermal properties... 

STRUCTURE AND THERMAL PROPERTIES ASSOCIATED WITH SOME HYDROGEN BONDS IN CRYSTALS. II. THERMAL EXPANSION. 

Mallakpour S, Dinar M. Surface treated montmorillonite structural and thermal properties of chiral poly(amide-imide)/organoclay bionanocomposites containing natural amino acids. J Inorg Organomet Polym Mater 2012 22(5) 929-37. 

M. R. Huang, X. G. Li, Y. L. Yang, X. S. Wang, D. Y. Yan, Oxidative copolymers of aniline with o-toluidine their structure and thermal properties, Journal of Applied Polymer Science 2001, 81, 1838. 

Petersson L, Kvien 1, Oksman K (2007) Structure and thermal properties of poly (lactic acid)/ cellulose whiskers nanocomposite materials. Compos Sci Technol 67 2535-2544 Petersson L, Mathew AP, Oksman K (2009) Dispersion and properties of cellulose nanowhiskers and layered silicates in cellulose acetate butyrate nanocomposites. J Appl Polym Sci 112 ... 

Araujo LL, GiuUan R, Sprouster DJ et al (2008) Size-dependent characterization of embedded Ge nanocrystals Structural and thermal properties. Phys Rev 878 094112... 

M. Fujita, T. Sawayanagi, T. Tanaka, et aL, Synchrotron SAXS and WAXS studies on changes in structural and thermal properties of poly[(R)-3-hydroxybutyrate] single crystals during heating, Macromol. Rapid Commun., 26 (2005) 678-683. 

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