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Explores the methylation process factors, and the structure of the compound by IR, NMR and elemental analysis were characterized.
NaY zeolite structure and catalytic mechanism shown below: Experimental Instruments and reagents WRS.1B digital melting point apparatus (Shanghai Precision & Scientific Instrument Co., Ltd.); AVATAR 360 FTIR infrared spectrometer (USA Thermo Nicolet, KBr tablet); Vario-EL-cube elemental analyzer (Elementar German company)), RE ~ 3000 rotation evaporator (Yahya Rong Biochemical Instrument Factory), Mercury Plus 400 NMR spectrometer (400MHz, Varian, USA); LC-10AT gas chromatograph (Shimadzu Corporation); WA2081 atomic absorption spectrometer (Beijing Hengtong Rayleigh Instruments Ltd.).
Combined with the case of the 1H NMR and elemental analysis results and chemical shift coupling split can be considered for preparing a compound of formula 4 is consistent with the structure .
Explores the methylation process factors, and the structure of the compound by IR, NMR, and elemental analysis were characterized to determine the optimal reaction conditions to improve yield.
Fujian: Chemistry and Chemical Engineering, Xiamen University, 1998.

Pearce3,c 1Department of Physics, Faculty of Science, Naresuan University, Phitsanulok, 65000, Thailand. 2Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand. 3Panyapiwat Institute of Management, Nonthaburi, 11120, Thailand.
%Cr iron consists of pearlite, formed by decomposition of primary dendritic austenite, plus eutectic structure.
%Cr iron with lower hardness, the microstructure consists of primary dendritic austenite plus eutectic structure.
The damage in the eutectic regions of destabilized irons was not as severe as in the as-cast structures.
Laird II, Structure, nucleation, growth and morphology of secondary carbides in high chromium and Cr-Ni white cast irons, J.

The results show that the higher sputtering power is beneficial for the growth of Rutile structure with superior photocatalysis.
We have investigated the structure properties of TiO2 thin films on glass substrate.
Anatase, Rutile and Brookite structure were represented by A, R and B, respectively.
Nie, Preparation of titanium dioxide porous thin films via photopolymerization of the colloidal TiO2 dispersion, Materials Chemistry and Physics, 140( 2013), 665-673 [10] D.Byun, Y.Jin, B.Kim, J.K.
Zhao, The structure and photocatalytic studies of N-doped TiO2 films prepared by radio frequency reactive magnetron sputtering.

Organic species and a little amount of water (micro-droplets surrounded with nanometer-scale film-like-domains) were detected on the oxidized and/or hydrated metallic surfaces for both specimens and their minute structures were discussed.
Surface composition analysis concerning adsorptive [15] has been frequently investigated, however, the morphology and structure have been poorly understood due to the limits of current observation and analysis techniques.
(3) The micro-droplets and film-like-domains were considered as adsorbed water and organic species on specimen surfaces, and their structure was tentatively discussed.
Metal substrate Oxide/hydroxide Water Organic species Water Hydrophilic C=O Hydrophobic C-C and C-O Fig.5 Schematic drawing of the surface structure in ambient air for pure iron and copper.
[16] M.Chigazawa and K.Tajima: Interface Chemistry (Maruzen, Tokyo 2001)

The kinetic laws of the reactions have been investigated and the structures of the copolymers have been established.
Molecules of N, N-diallylaminocarboxylic acids enter into a copolymerization reaction with the participation of double bonds through intramolecular cyclization with the formation of pyrrolidine structures in the macrochain.
Effect of the Structure of Cationic Polysulfone on the Flocculation of kaolinite. // J. of Appl.
Practical work in organic chemistry.
The Structure of Poly (Diallyl dimethylammonium) Chloride by 13C-NMR spectroscopy.

Introduction The construction of organic–inorganic nanocomposites has attracted considerable attention in the field of materials chemistry.
The model structure of magadiite is shown in Fig. 1.
The chemical structures of the covalently bonded APTS, GPS and MPS used to graft onto the CTAB- magadiite are shown in Figure 3.
The peak at T2 represents the structure of 【Si(OSi)2(OR’)R】 and T3 represents 【Si(OSi)3OR】.
T2 T3 Q3 Q4 Chemical shift (δ/ppm) Fig.3a. 29Si Solid-state CP-MAS NMR spectra of APTS-magadiite (T2 represents the structure of【Si(OSi)2(OR’)R】and T3 of 【Si(OSi)3OR】, peak Q3 indicating the structure【Si(OSi)3OH】 and peak Q4 of【Si(OSi)4】) Chemical shift (δ/ppm) Fig.3b. 29Si Solid-state CP-MAS NMR spectra of GPS-magadiite(T2 represents the structure of【Si(OSi)2(OR’)R】and T3 of 【Si(OSi)3OR】, peak Q3 indicating the structure【Si(OSi)3OH】 and peak Q4 of【Si(OSi)4】) Fig.3c. 29Si Solid-state CP-MAS NMR spectra of MPS-magadiite(T2 represents the structure of【Si(OSi)2(OR’)R】and T3 of 【Si(OSi)3OR】, peak Q3 indicating the structure 【Si(OSi)3OH】 and peak Q4 of【Si(OSi)4】)

Network Structures, Flexibility and Stability in Thermal and Chemical Environments of Polyurethane Prepared from Rubber Seed Oil.
Molecular Mass and PU &etwork Structure Determination.
The network structure of the PU samples was determined from swelling experiments in toluene at ambient temperature.
Molecular Weight and &etwork Structures of Biobased PU samples.
The effect of diisocyanate type and [NCO]/[OH] ratio of the polymer network structures are given in Table 5.

In this paper,Ni-P/BN(h) composite coatings were prepared by pulse electroplating technique,The effect of heat treatment on structure and micro-hardness of Ni-P/BN(h) composite coatings were investigated,corrosion behavior of composite coatings were also discussed.
Testing methods The phase structures of the as-deposited and heat-treated composite coatings were characterized by X-ray diffractometry (XRD);SEM images of the as-deposited and the corrosive morphology of the composite coatings were obtained using a scanning electron microscopy (JSM-6380LV).Micro- hardnesses of the samples were tested using a Knoop indenter and a load of 200g(1.96N) for a loading time of 5s in HXS-1000A system.The average value of 5 measurements on the sample was taken as the reported hardness value.
Result and discussion Effect of heat treatment on structure of composite coatings Fig.1 shows the surface and interface morphology of the composite coating as-deposited.As expected,the morphologies of the composite coating indicate the the presence of BN(h) particles.Fig.2 shows the diffraction patterns of the Ni-P/BN(h) composite coatings and Ni-P alloy coatings.The composite coating as-deposited is an amorphous structure,the peak of corresponding to presence of BN(h) in the coatings are clearly visible.Heat treated at temperature of 200 or 300℃ to the composite coatings,the precipitated phases are Ni12P5 and Ni5P2 unsteady phases;after heat treatment of 400℃,the precipitated phase becomes Ni3P stable state phase,the composite coating was crystallized in great degree.But,heat treated at temperature of 200℃ to Ni-P alloy coating,the precipitated phase is Ni3P stable state phase.This illustrates that BN(h) particles delay precipitating of Ni3P in heat treatment process,lead to increase
Therefore, the structure and properties of heat-treated Ni-P/BN(h) composite coating depend on the heat treatment temperature and time.
Chinese Journal of Applied chemistry, Vol.25 (12)(2008), p.1499

All the XRD patterns clearly show the main characteristic peaks of anatase phase structure of TiO2 (standard XRD card no. 21-1272).
It indicates that all the samples are principally single-phase anatase structures.
The codoped particles were not close-packed enough but took an overlapped porous structure.
The XRD results confirm that the F, Fe-codoped samples are single-phase anatase structures.
SEM micrographs reveal that the codoped particles took an overlapped porous structure.

With the increase of the cyclic number N, sintering effect made the micro-structure of absorbent change, so that X decreased.
The reason is that with the increase of N, sintering effect gradually changed the pore structure of sorbents.
And with the increase of N, the impact to micro-structure after cycle is gradually emerging, after a large number of cycles, changes of specific pore volume in the structure also make the conversion X dropped significantly compared with the first cycle, how to reduce the change of pore structure to sorbents is also the major problem which the researchers will continue to face.
(3) With the addition of cycle number N, sintering effect gradually decreased the pore structure of sorbents, so that X decreased, too.
Industrial&Engineering Chemistry Research Vol. 45 (2006), p. 8846-8851 [5] Y.J Li, C.S Zhao.