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igure 1 depicts the synthesis and molecular structure of the UV-curable sealant.
The both ends of the molecular structure of the synthesized UV-curable sealant include two C=C bonds which belong to π-electronic structure.
XRD patterns for SrS: Eu2+, RE3+ composites and the JCPDS card 75-0895 for SrS is also given.Synthesis and molecular structure of the UV-curable sealant.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)

According to these results, the substance, such as a needle, was found to have the same crystal structure as g-C3N4.
In contrast, FT-C3N4MT (Fig. 4 c-d) showed a rod-shaped structure.
Microtube structure can be seen clearly.
In addition, the tubular structure is a factor in making FT-C3N4MT light enough to float on water.
Chemistry Select Vol. 4, Issue 15 (2019), p. 4443-4457 [2] Longyan Wang, Yuanzhi Hong, Enli Liu, Zhiguo Wang, Jiahui Chen, Shuang Yang Jingbo Wang, Xue Lin, Junyou Shia.

Determination of Phase Content in Multiphase Polymers by Solid-State NMR Techniques Antonio Martínez-Richa1, a and Regan Silvestri2,b 1 Departamento de Química, Universidad de Guanajuato, Noria Alta s/n, Guanajuato, Gto. 36050 México 2Department of Chemistry, Baldwin-Wallace College, 275 Eastland Rd., Berea, Ohio 44017 USA a richa@ugto.mx, b rsilvest@bw.edu Keywords: multiphase polymer materials, solid-state NMR, structure characterization, morphology, conformation, cross-polarization, magic-angle spinning, polymer dynamics, chemical shift, relaxation times Abstract.
In most cases, differences in conformation between the amorphous and crystalline phases result in the observation of different peaks for the same nuclei (carbon-13 and other spin ½ nuclei) in the molecular structure.
This result is consistent with powder wide-angle X-ray diffraction results previously reported, and further confirms that the diblock copolymer α-CD-IC crystals adopt the channel structure.
Summary: Bulk polymers are composed of amorphous and crystalline regions which have distinct domain structures and chain dynamics within the domains.
In this article, some examples illustrating the use of solid-state NMR methods to probe the structure and dynamics of different polymer domains in multiphase polymer systems are reviewed.

Rasek1,e 1 Institute of Materials Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland 2 Faculty of Chemistry, Maria Curie Skłodowska University, M.C.
The best fitting of the experimental X-ray data to as jet available ICDD files was obtained for Ni3P type structure (39-1315 - S.G.: I4 (82)).
As yet the following ICDD files are available for Fe3B phases: for two tetragonal phases (Ti3P type structure (39-1315 - S.G.: P42/n (86)) and Ni3P type structure (39-1316 - S.G.: I4 (82))) and two files (34-1198 and 35-1339) for orthorhombic phase (Fe3C type structure, S.G.: Pnma (62)).
X-ray diffraction pattern of metastable Fe3B phase in selected 2θ range (sample annealed at 600°C); the line positions corresponding to as yet proposed type structure are marked Table 1.
(Å 3) M(20) [13] F(20) [12] 550°C 8.6686 4.3121 324 13 9 600°C 8.6521 4.3090 322 24 17 650°C 8.6338 4.3021 320 17 11 800°C 8.6200 4.2971 319 20 13 Summary - The stable α-Fe crystallized as the first crystalline phase during annealing for 1 hour of Fe78Nb2B20 amorphous alloy at 350°C; the metastable Fe3B phase appeared to be stable during isochronal annealing in 425-800°C temperature range, - the best fitting of the experimental X-ray data to as yet available ICDD files was obtained for Ni3P type structure (39-1315 - S.G.: I4 (82)), - the obtained values of M(20) and F(20) parameters indicate good agreement between the calculated values of lattice constants and positions of experimental diffraction lines; the best agreement was obtained for the sample annealed at 600°C, - the values of lattice constants of Fe3B phase decreases with the increase of annealing temperature.

Morphology Measurement on Phenolic-Resin/Vitreous-Silica-Fabric Ablation Composites Modified with Tetraethoxysilicate and Silsesquioxanes Yu Hu1,a, Xingwen Zhang2,b and Hong You1,c 1State Key Laboratory of Urban Water Resource and Environment, 2Department of Chemistry, Harbin Institute of Technology, Harbin 150001, China ahisokadot@163.com, bzhxwhit@yahoo.com.cn, cyouhong@hit.edu.cn Keywords: Ablation, modifier, nanohybrid materials, silsesquioxanes (SSO), morphology.
To compare ablation properties of the three modifiers, the correlation of the material structures and ablation properties were discussed with ablation tests and morphology measured by SEM.
Current Results Correlation of Material Structure and Ablation Property.
Determination of Ablation Structure.
Wootan: , In proceeding 45th AIAA/ASME/ ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, 19 - 22 April 2004, Palm Springs, California

The observations of oil droplets in an emulsion and internal structure of a macroporous hydrogel demonstrate that the oil droplets act as a pore-template.
The macroporous structure is clearly observed.
Macroporous hydrogel entrapping enzymes Enzymes are very promising alternatives to conventional industrial catalysts in industrial chemistry.
The internal structure of hydrogels was observed with the SEM and a confocal laser scanning microscope (CLSM) (Fig. 3).
The macroporous structure and the spherical cluster of Fluorescein-4-isothiocyanate (FITC) labeled lipases are clearly observed.

Medan-Banda Aceh, Buket Rata, Lhokseumawe, Indonesia 2 Department of Chemistry, Faculty of Mathematics and natural Sciences, University of Sumatera Utara, Jl.
The various methods for preparing Polyurethane /clay nanocomposites, but in this research the author choice by a pre-polymer method and were evaluated by fourier transform infrared (FTIR) spectra to determine micro-domain structures of segmented PU.
The micro domain structures of the segmented PU were analyzed by FTIR by following the work of Seymour, et.al. to estimated the degree of phase separation in segmented PU.The formation of hydrogen bonding by –C=O group can be determined by examining the peak position at 1709 cm-1 for hydrogen bonded –C=O and at 1731 cm-1 for free –C=O.
The FTIR spectra of the synthesis polyurethane based on palm oil polyol The micro domain structures of the segmented PU were analyzed by FTIR as shown in fig. 3.
The micro domain structures of the segmented PU were analyzed by FTIR by following the work of Seymour, et.al. to estimated the degree of phase separation in segmented PU.The formation of hydrogen bonding by –C=O group can be determined by examining the peak position at 1709 cm-1 for hydrogen bonded –C=O and at 1731 cm-1 for free –C=O.

Synthesis of bismyristyl bisulpho betaine type amphoteric surfactant Rongming Zhang a , Donghui Mab, Zhenyu Zhangc College of Chemistry and Chemical Engineering Northeast Petroleum University Daqing, China azrm3000zrm@163.com, bmadonghui1983@163.com, czhzhyu1985@163.com.
The structure of bismyristyl bisulpho betaine type amphoteric surfactant was identified by FTIR.The influence factors of the synthesis process were studied.The optimal condition of the synthesis was gained.
The solution possess more excellent physical and chemical properties,such as higher surface activity,lower kafft points, wetting performance,solubilization capacity and washing capacity [1].Not only the structure of bismyristyl bisulpho betaine molecule enhanced the hydrophobic interactions of hydrocarbon chains,but also the repulsive interaction was weakened between hydrophilic group (especially ionic type) by effect of chemical bond.
Infrared ray spectrum(IR) proved that the molecular structure of product was right.
[3] Xie Yajie,heng Wenjin:Synthesis and structure characterzation of novel gemini surfactants.J Chem Rese Detergent and Cosmetics Vol. 3 (2002 ),p. 100-102

Mg(OH)2 nanoparticles have platelet-like structure and approximately 40-60nm in thicknesses.
All diffraction peaks in Figure 1 can be indexed as the hexagonal structure Mg(OH)2 (JCPDS file number 7-239) [11].
Conclusion The platelet-like structure MH nanoparticles were prepared in the magnesium nitrate solution by hydration of the light-burned magnesia.
The particles are thin, platelet-shaped structure with 40-60 nm in thicknesses.
Shen, Basic inorganic chemistry, (Beijing: People's Education Press 1980), pp. 661

Synthesis and characterization of W-SBA-15 mesoporous material Bei-Bei Dong, Ke Zhang, Cai-Xia Li, Cheng-Yuan Yuan and Xiu-Cheng Zheng* Department of Chemistry, Zhengzhou University, Zhengzhou 450001, China *zhxch@zzu.edu.cn Keywords: SBA-15; W-SBA-15; Cyclohexene; Adipic acid; Hydrogen peroxide.
The results showed that the prepared W-SBA-15 sample retained the typical mesoporous structure of SBA-15 and exhibited good catalytic performance for the green synthesis of adipic acid under organic solvent-free conditions.
It can be seen that both the samples exhibited XRD patterns with one very intense diffraction peak and two weak peaks, which are characteristic of 2-D hexagonal (P6mm) structure with excellent textural uniformity.
The images reveal that the W-SBA-15 retained the well-defined wheat-like macro-structure of pure SBA-15.
The results showed that the W-SBA-15 sample retained SBA-15 mesoporous structure and can be recycled-without obvious loss of activity for the green synthesis of adipic acid.