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Copolymerization of carbon dioxide and propylene oxide catalyzed by salen complexs Chong-wen Jiang1, a , Chen-chen Zhao1, b and Ke-yuan Zhou1, c 1College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China ajcwcsu@csu.edu.cn, bzc402317@163.com, ckeyuanzhou@163.com Keywords: Carbon dioxide, Propylene oxide, Salen complexes, Copolymerization Abstract: Three salen complexes N,N'-bis(salicylidene)-1,2-phenylenediamino M III Cl were prepared and employed for the copolymerization of carbon dioxide with propylene oxide.
The structure of the resulting PPC was characterized by IR 1H NMR and GPC. 86.3% carbonate content of the PPC was achieved with chromium salen complexes.
Structure of complexes (salen)M III Cl Eq. 1.

A novel urushiol grafted Degussa P25 (urushiol/P25) hybrid nano-material was synthesized, and its structure was characterized.
In this work, we synthesized a new hybrid semiconductor using urushiol as the ligand and the structure of the urushiol/P25 hybrid nanocrystallites was characterized.
Simth, et al.: Environmental Toxicology & Chemistry Vol. 7(1998), p. 119–126

In order to modify the physical properties of prepared bone composite structures, some additives are included within the structure.
New bone structure grows on the interface of implant-bone due to its similar chemical and mineralogical composition and crystallographic structure to apatite of human body living bone [4−5].
SEM photos in Fig.4 show that HA spherical structures covered the surface after 14 days immersion.
Kokubo, Surface chemistry of bioactive glassceramics.
Yamamuro, Soultions able to reproduce in vivo surface-structure changes in bioactive glassceramic A-W.

Potential (structure and reservoir) controlling hydrocarbon accumulation position (1) Different reservoir-cap combinations lead to different types of the structure of hydrocarbon enriched layers ①Subsags of self-generation and self-storage type own the richest hydrocarbon.
Through statistics, we can obtain that among the self-generation and self-storage type reservoir-cap combinations, the distribution of hydrocarbon is mainly to subsags, secondly, is the gentle slope structure, the knurl in sunken structure is the least. ②Subsags of lower-production and top-storage type own the richest hydrocarbon.
Among the lower-production and top-storage type reservoir-cap combinations, the distribution of hydrocarbon is mainly to subsags, secondly, is the gentle slope belt, the steep slope belt is the least. ③The knurl in sunken structure of top-production and lower-storage type own the richest hydrocarbon
Preparation of Material Surface Structure Similar to Hydrophobic Structure of Lotus Leaf [J].
Progress in Chemistry, 2007, 19(6): 860-866.

Given that geopolymer formation is basically dissolution and hydrolysis, followed by a condensation process that takes place in an M2O–Al2O3–SiO2–H2O system, the concentrations of R and Si determine the type of hydrolysed ion and the path of the condensation process, and hence the chemistry and properties of the resulting geopolymer.
Low Si concentration results poly(sialate) polymer structures.
Therefore, in this system condensation is likely to have occurred between aluminate and silicate species, producing poly(sialate) polymer structures.
However, too high SiO2/Al2O3 ratios didn’t lead to a higher strength, but a sharp decrease with big cracks in the structure.
It proves that the excess amount of sodium silicate existed in the samples remains without geopolymerization, and it loosens the structure and reduces the strength.

The ZnO nanotatrapods structures of this experiment seem to the research of Djuristic et al [11].
The ZnO peak structures were not appear on the substrate, this result was similarly with Li et al paper [13].
The products look like nanorods structures materials and EDX curves indicated that nanorods structures materials consisted of Si atom and Au atom may from instrument.
Lieber, Chemistry and physics in one dimension : synthesis and properties of nanowires and nanotubes, Acc.
Surya, Photoluminescence and electron paramagnetic resonance of ZnO tatrapod structures, Adv.

It was found that the cobalt oxide films exhibited the crystalline structure of cobalt (II) oxide structure (JCPDS Card No.74-2392) and (JCPDS Card No.09-0402) [4].
The cobalt (II) oxide structure in thin film form which was confirmed by Raman spectra as shown in Fig. 1(b).
It found that the films have the high porosity and their morphology exhibit sponge-like structure.
Surface morphology of cobalt oxide films shows the high porosity structure and sponge-like structure.
Dawood, Effect of Cu-doping on Urbach energy and dispersion parameters of Cu:NiO film deposited by CSP, International Letters of Chemistry, Physics and Astronomy. 48 (2015) 138-145.

Biological synthesis of triangular Pd nanoplates by aqueous extract of Syzygium Samarangense leaf Daohua Sun*, Pengyao Li, Xueliang Li Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China sdaohua@xmu.edu.cn Keywords: Biosynthesis; Pd; Triangular nanoplates; Syzygium Samarangense.
The morphology and structure of the obtained Pd nanoplates were characterized by transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy analysis.
Introduction Properties of metal nanostructures are determined by their size, shape, composition, crystallinity, and structure [1].

Preparation of Molybdates with Antibacterial Property Yanyan Meng and Zhaoxian Xionga College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China a zxxiong@xmu.edu.cn Keywords: Molybdate, Anti-bacterial property Abstract.
The structure and morphology of the samples were characterized with X-ray diffraction and scanning electron microscopy.
Zone of inhibition (mm) Compound E. coli S. areus (1) (2) (3) (4) (1) (2) (3) (4) Zeolite Ag2Mo2O7 - 18.0 - 17.0 - 17.0 - 16.0 - 17.5 - 17.0 - 17.0 - 16.5 Ag3PO4 11.0 14.0 14.0 13.0 11.0 11.5 13.5 14.0 ZnMoO4 8.5 8.0 7.5 7.0 10.0 10.0 9.5 9.5 Zn2(PO4)3 - - - - 7.0 7.5 7.5 6.0 CoMoO4 10.5 10.0 9.0 9.0 9.5 8.0 8.0 8.0 Co3(PO4)2 7.0 7.5 7.0 9.0 9.5 7.0 7.0 5.0 ( " - " refers to no antibacterial zone exist ) Results and Discussion Structure and morphology.

Preparation and Characterization of the Ordered SiO2 Colloidal Crystallization Films Shuanggui Qinga, Bo Liu, Xun Liang, Haiyang Li, Weizhong Lv, Honghua Cai, Fang Wang and Zhongkuang Luob Department of Chemistry and Engineering, Shenzhen University, Guangdong 518060, China a qingyi198312@163.com, bluozhongkuan@126.com Keywords: SiO2 colloidal crystal; Vertical deposition technique; Self-assembly Abstract.
The results showed that thin film is the face-centered cubic structures and the spheres are [111]-oriented.
Inspection performed by scanning electron microscopy of the films' surface revealed that for most experiment conditions employed, thin and uniform colloids packing presenting hexagonal close-packed domain were formed, with a clear tendency to form a face-centered cubic (fcc) structure, as shown in Fig.4a-d.