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The structures of the UV absorbers were showed in Scheme 1.
Scheme 1 Structures of UV absorber A, B, C and D Appearance, melting point, yield and 1H NMR spectra data of the UV absorbers were listed in Table 1.
The chemical shift values in the 1H NMR spectra of the new UV absorbers are in good accordance with their structures.
The UV light absorbing property of UV absorbers is related to their chemical structures, molecular weights and uptakes onto the polyester fabrics.
The excellent UV light absorbing property of UV absorber C and D may be ascribed to their chemical structures.

Some different morphology of cadmium selenide nanomaterials have been synthesized via different ways including nanoparticles, nanorods, nanoprisms, nanoneedles, hollow spheres, flower-like architectures, urchin-like nanocrystallines, layer-rolled structures, etc[4-6].
Among them, hydrothermal or solvethermal method is regarded as a very effective and potential soft-chemistry route to tune the architectures of cadmium selenides.
X-ray diffraction (XRD) shows the cubic zincblende crystalline phase of the nanoparticle and the amorphous structure of the amylopectin film.The average radius of the grains, calculated using the Scherrer formula in XRD peaks, is of the order of 8nm.
After establishing the composition and structure of the heteronanowires, they turn to their optical properties.
Prospects Cadmium selenide nanostructures have novel properties and functions corresponding to their unique structures.

In addition, the cross-linked polymer can form stable network structure in asphalt, thus the property of asphalt becomes more stable.
This because the stabilizer, on the one hand, promotes the cross-linking between the polymer molecules to form space structure in asphalt.
On the other hand, the cross-linking network structure restrains the movement of the polymer molecules [9].
Therefore, the cross-link of the modifier, network structure and modifier-polymer grafts formed in the asphalt.
[10] Lewandowski LH, Rubber Chemistry Technology, 1994, vol.67, issue 3: p.477-480.

By fabricating a nanotubular TiO2 layer on the titanium, the apatite deposition could be faster compared with the flat and compact titanium oxide, because the nanotubular structure has larger surface-to-volume ratios and then also be more exchange with the fluid [10].
Moreover, it is well accepted that nano-structure is more efficient than micro-structure for implant-bone bonding and cell adhesion [10].
After 35 min deposition, EDS was used to examine the chemical composition of coatings, confirmed the coatings consisted of Ca, P and O elements, also Ti was detected from substrates (Figure 2d) and the Ca/P molar ratio was about 1.2, so the deposited HAp was a calcium deficiency type with a high concentration of calcium vacancies in the lattice structure.
It reveals the coating has a good HAp crystallized structure.
Materials Chemistry and Physics. 2011;125:510-7

This is the process of modifying the structure of the material due to plastic deformation (mechanical mixing), which allows to obtain a certain fine structure, complex texture in the processing area, as well as to create a composite by adding additional components to the matrix material to be processed.
Chemistry and technology of rare and scattered elements (Khimiya i tekhnologiya redkikh i rasseyannykh elementov).
Influence of intensive plastic deformation methods on the structure and properties of Al-Mg alloys (Vliyaniye metodov intensivnoy plasticheskoy deformatsii na strukturu i svoystva splavov sistemy Al-Mg).
Research into structure and rheological and relaxation properties of nanocrystalline beryllium at temperatures of hot rolling and research into stress relaxation kinetics in different sorts of beryllium (2014) Nanotechnologies in Russia, 9 (7-8), pp. 430-440
[11] Kolbasnikov, N.G., Mishin, V.V., Shamshurin, A.I., Zabrodin, A.V.Investigation of structure, rheological and relaxation properties, and stress relaxation kinetics in nanocrystalline beryllium at hot rolling temperatures (2014) Nanotechnologies in Russia, 9 (1-2), pp. 65-72

This property is highly influenced by the chemistry and morphology of the surface [6].
The water repellency of superhydrophobic surfaces is attributed to the synergistic action of hierarchical physical structures in nano- or/and microscale and low-surface energy substances.
Zinc oxide exists as three crystal structures: rocksalt, zincblende, and hexagonal wurtzite [6-8].
The phase composition and crystal structure of the powders were analyzed using X-ray Diffraction (XRD, Shimadzu XRD-7000) utilizing Cu Kα radiation.
Interestingly, flower-like structures were present together with the spherical nanoparticles when ultrasonication was applied.

Nevertheless, the formation mechanism, domain structure, and the properties have not yet been clarified [5].
In this study, domain existence was observed by AFM and SEM image and their structure distribution were discussed.
Scanning Probe Microscope (SPM) for topographic and phases analyses was used to investigate smaller structure of CCTO.
The bumped and terrace-ledge shaped domain were previously reported by Fang et al. [5] which investigate domain structure using HRTEM.
Liu: Evidence of the Internal Domains for Inducing the Anomalously High Dielectric Constant of CaCu3Ti4O12, Chemistry of Materials, 17 (2005) 5167-5171

To determine the efficiency of sequential adsorption, as well as to predict the main methods and directions waste sorbents use, it is necessary to have reliable instrumental methods for studying the structure of clay minerals, for which the X-ray phase method was used.
In the case of successive absorption of phosphate ions by bentonite and then chromium ions (sample 3), it is most likely that chromium ions are washed out of the clay structure when passed through a column of phosphate solution.
The absorption of acid residues promotes dispersion and increases the amorphous structure.
This is a positive fact in the possible use of waste bentonite for filling polymer structures, because the fillers montmorillonites in a dispersed state [6].
Chemistry & Chemical Technology, 13(3) (2019) 372–376

Improvement on Impact Strength of the Nylon 1010 Injection Products with Inlay Jiamin ZHANG 1, a, Mingyi ZHU 2,b , Zhaoxun LIAN 1,c 1 School of Chemistry & Chemical Engineering , Henan Institute of Science and Technology, Xinxiang, Henan, 453003 , China 2 Department of Automobile , Henan Mechanical and Electrical Engineering College, Xinxiang Henan 453002 a shuimugfz@163.com, b bzmingyi@126.com, c czhxalian@yahoo.com.cn Keywords: Inlay, Nylon 1010, Injection molding process, Impact strength Abstract.
The factors that lead to the results are polymer materials, injection molding process conditions, the structure and shape of products, gate location, number and distribution and so on.
For amorphous plastics, mainly reflected in the orientation structure, and orientation degree, etc.
If it’s too short, the mold producing temperature is higher than the mold temperature, especially the temperature inner the products is higher, products in the natural cooling will have a greater contraction and depression, lead to the structure of the surface and inner is different, uneven stress distribution, and also lead to stress cracking in the usage.
Others The impact of products structure and shape on the impact strength is reflected on the meltflow direction and the internal stress generated.

After 4 phases (evaporation, heating, reaction and sintering), the blended balls become sintering agglomeration with a certain structure, and are discharged from the back of the sintering machine.
Its structure is shown in Fig. 2.
A BPNN with a three-layer (6-13-1) structure is established to predict the Pb composition:
(1) In like manner, a BPNN with a three layer (4-9-1) structure are established to predict the Zn composition:
Upadhyaya: Some issues in sintering science and technology, Materials chemistry and physics, Vol. 67 (2001), p. 1-5