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Synthesis and Characterization of Ag/Graphene Nanocomposites by Solid-liquid Sonochemical Reactions Tomofumi Mochizuki1.a *, Yamato Hayashi1.b, Jun Fukushima1.c and Hirotsugu Takizawa1.d 1Department of Applied Chemistry, Tohoku University 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan amochizuki@aim.che.tohoku.ac.jp, bhayashi@aim.che.tohoku.ac.jp, cfukushima@aim.che.tohoku.ac.jp, dtakizawa@aim.che.tohoku.ac.jp Keywords: Graphene, Ag nanoparticle, Ultrasound, Nanocomposites Abstract.
By the XRD patterns, the sample prepared by ultrasound is a higher ( 0 0 2 ) peak of GO and a lower ( 1 0 ) peak of GO. ( 0 0 2 ) peak of GO is attributed to interlayer of Graphene sheet and ( 1 0 ) peak is attributed to honeycomb structure.
Layer structure Graphite oxide exfoliated to Graphene Oxide by effect of ultrasound such as exfoliation and cleavage.
Klinowski, Structure of Graphite Oxide Revisited, J.

Hyper-dispersant Modifier Prepared and Applied in Polyethylene Composites Shaohui Wang （Department of Chemistry and Chemical Engineering, East China JiaoTong University, Nanchang, 330013, Jiangxi, China ） shhwang2008@sina.com Key words: Hyper-dispersant; Polyethylene; Impact strength Abstract A new hyper-dispersant with Silicon radicals as anchoring group and poly(butyl acrylate) as solvatable chain was synthesized and its effect on the properties of PE/Talc composites was investigated in this paper.
Among these additives, new modifiers have gained much attention because of its special structures, which have two different functional groups, one is anchoring group which attracted to the surface of the fillers and the other is solvatable chain which attracted to the resin .
The prerequisites to this result lie in the establishment of a suitable phase structure and interfacial adhesion in the composites.
The influence of surface modification on the structure and properties of a nanosilica filled thermoplastic elastomer.

Effects of microstructure types on the evaporation efficiency of electrically heated micro evaporator Shuzhang Zhou 1, Rui Kong 1, Minqiang Pan 2,a, Qiaoxia Yuan 1, Tingbo Hou 1 1 School of Design, South China University of Technology, Guangzhou510640, China 2Key Laboratory of Surface Functional Structure Manufacturing of Guangdong Higher Education Institutes, South China University of Technology, Guangzhou510640, China a Corresponding author: mqpan@scut.edu.cn Keywords: Microstructure; Electrically heated; Micro evaporator; Evaporation efficiency Abstract.
Micro Evaporator Structure In this work, a laminated microstructure-plate electrically heated evaporator was proposed, which was composed of two cover plates and an evaporation plate, as shown in Fig. 1.
Fig. 1 Laminated microstructure-plate electrically heated evaporator and the internal structure Experimental The test system of microstructure-plate electrical heated evaporator was shown in Fig. 2.
Richter: Industrial & Engineering Chemistry Research, Vol.38(1999), p.1075-1082

Synthesis and Characterizations of PLLA/PEG Block Copolymers Thai Hien Nguyen1,a, Atitsa Petchsuk 2,b , Pramuan Tangboriboonrat 3,c , Mantana Opaprakasit 4,d , Alice Sharp1,e , and Pakorn Opaprakasit1,f * 1 School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology (SIIT), Thammasat University, Pathumthani 12121 Thailand 2 National Metal and Materials Technology Center (MTEC), Pathumthani 12120 Thailand 3 Department of Chemistry, Mahidol University, Bangkok 10400 Thailand 4 Department of Materials Science, Chulalongkorn University, Bangkok 10330 Thailand a nguyen.th.hien@gmail.com, batitsp@mtec.or.th, cscptb@mahidol.ac.th, d mantana.o@chula.th, ealice@siit.tu.ac.th, fpakorn@siit.tu.ac.th Keywords: PLLA, PEG, copolymer, chain extending, degradable polymer Abstract.
Chemical structure and molecular weight of the copolymers were characterized by 1HNMR, FTIR and GPC.
Effects of molecular weight of PEG, LLA:OH(PEG) molar ratios and a sequence of addition of the reactants on structure and properties of copolymer are investigated.
Copolymerisation reaction of PEG and LLA by ring-opening polymerization The chemical structure and composition of the triblock copolymers were characterized by 1HNMR.
Block lengths and chemical structures of the copolymers are characterized by 1H-NMR and FTIR.

The structure information and surface images of nano β-FeOOH and β-FeOOH/SMZ were characterized by X-ray diffraction (XRD) and Field-emission scanning electron microscopy (FE-SEM).
Many natural minerals with porous or nano structure have been proved to be good adsorbents with their large specific surface area and stable chemical properties.
XRD was performed to obtain the structure information (Fig. 1).
The peaks for β-FeOOH have notable higher intensity than that of β-FeOOH/SMZ, which results rather from the change in the interaction in the internal structure of the surfactant modified zeolite.
Beijing: Chemistry Industry Process, 1983

This paper presents the results of experimental determinations concerning electromagnetic field attenuation in materials containing micro-particles of nanocarbon in their structure.
They have a repeat unit of alternating silicone–oxygen (Si-O) siloxane in the backbone and have unique chemistry without carbon in the backbone (R2-SiO)n.

More recently, the same process has been successfully expanded into MEMS technology for the purpose of stiction-free releasing of structures by isotropic etching of sacrificial SiO2 [6,7].
Here, we focus attention primarily on the interactions of the AHF etch chemistry with materials which comprise various electronic and photonic devices.

XRD analysis revealed the formation of cubic structure CdSe.
Yan, Ultrasonics Chemistry Vol. 9 (2002), p.311

Quaternary europium complex EuxGd(1-x)(POA)(TTA)2Phen were synthesized by doping no-fluorescent inert ions Gd3+ with ligands of POA, α-thenoyltrifluoroacetone (TTA), and o-phenanthroline(Phen).IR spectra was studied , indicate that these complexes have similar structures, have bonded with the ligands.
Introduction Recently the rare earth material are studied widely for their unique electronic structure and properties, and their high luminous intensity, the narrow emission spectrum, the color of high purity, fluorescent efficiency, high stability, environmental protection and other advantages when they and organic ligands coordinated to form complexes[1 ~ 2].
Therefore this paper choose good performance of aromatic acid POA, high luminous intensity of β-diketone TTA as main ligands, o-phenanthroline as collaborative ligand to synthesize EuxGd(1-x)(POA)(TTA)2Phen doped Complexes; element analysis , IR spectra were used to determine their composition and structure, and fluorescence performancewere studied by fluorescence spectra [3 ~4] .The results show that the doping ions Gd3+ can enhance the fluorescence intensities, the best mole ratio of europium to gadolinium is 6: 4.
Tab.1 Composition of the Complexes Complexes C% H% N% Eu% Gd% Exp Calc Exp Calc Exp Calc Exp Calc Exp Calc Eu (POA)(TTA)2Phen 44.21 45.09 2.62 2.71 2.80 2.92 16.03 15.87 —— —— Eu0.6Gd0.4(POA)(TTA)2Phen 43.52 44.98 2.62 2.71 2.81 2.92 10.37 9.50 7.23 6.58 IR spectrum of complexes The IR spectrum of all doped complexes were determined in the range of 3500~500cm-1, showed that they have similar IR spectrum, indicated that they have the similar structure. 1532 cm-1, 1302 cm-1 were the expansion vibration absorption peak of carboxyl group, indicated that the carboxylic acid in POA took off the proton to coordinate with the rare earth europium ion by the acid radical. 1601 cm-1 attributed to the ligand TTA carbonyl expansion in vibration absorption peaks.
Analytical Chemistry of Rare Earth Elements (second edition) [M].

Fabrication of Hydroxyapatite and Observation of Nanoparticles Entering into Cells Dong Yang1a* Enjie Sun2b 1College of Chemical and Chemistry, Shaanxi University of Science and Technology, Xi’an 710021, Shaanxi, P.R.China 2Department of Biological Science and Technology, College of Science, Wuhan University of Technology, Wuhan 430070, Hubei, P.R.China ayangdong@sust.edu.cn, bsunecho@163.com Keywords: Hydroxyapatite, Cells, Penetration Abstract.
Size distribution, zeta potential and transmission electron microscope (TEM) were performed to characterize the nanoparticles structure and define the mechanism by which nanoparticles are capable of entering into cells.
Synthetic protocols for hydroxyapatite of different structures and sizes have evolved over the last several years.[5-8] For example, Koumoto, K et al synthesized positively and negatively charged hydroxyapatite nanoparitcles by self-assembled monolayers (SAM) terminated with amino (NH2-SAM) and hydroxyl (OH-SAM) headgroups, respectively[9] and macro porous hydroxyapatite Ca10(PO4)6(OH)2 was synthesized using ordered polystyrene sphere templates that were impregnated with a calcium phosphate precursor solution.[7] It is well known that size, shape, and surface charge are the primary parameters of colloidal particles for cellular uptake.[1] Motskin and co-workers recently reported that negatively closer to neutral charged and rod-like HAP nanoparticles were superior to spherical shape nanoparticles in terms of cellular uptake.[10] In general, most of the research works focus on the fabrications, surface modification and bioapplications of hydroxyapatite, there are only a limited number of
It was noticed that all the particles in cells did not coagulate and that they were all outside of membrane structure, recognized as endoplasmic reticulum and pathologic vacuoles, but not encapsulated in membrane.
The particles in cells did not coagulate also but on the contrary with HAP nanoparticles that they were all in membrane structure, recognized as lipid vesicles and heterolysosome.