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All formed polymers were characterized by pH meter to measure the acidity, and non-surfactant PVAc was characterized by Fourier Transform Infrared Spectroscopy (FTIR) to study molecule structure Indonesia Institute of Sciences, LIPI, Komplek PUSPITEK, Indonesia.
This results from the surfactant's amphoteric properties, which simultaneously carry an anionic and cationic hydrophilic group with its structure containing simultaneously hermaphroditic ions, which can form cation or anion according to the changes of pH condition.
Polymer Chemistry, 11(13), (2020) 2390–2398
Frontiers in Chemistry, 6(JUL), (2018) 1–13

Drofenik1,2,b 1 Jožef Stefan Institute, Ljubljana, Slovenia 2 Faculty of Chemistry and Chemical Engineering, Maribor, Slovenia a vuk.uskokovic@ijs.si, bmiha.drofenik@ijs.si Keywords: Curie Point, Formation Mechanism, Manganite, Solid-State Synthesis.
By the way, the pathways of the formation of the prepared stoichiometries of La1-xSrxMnO3+δ compound were discussed, promoting an insight into complex structure of these compounds.
By comparing the peak intensities of the transient phases of the samples calcined at different temperatures, it becomes evident that the gradual increase in the heat content of the system leads, after the first measured case (calcination at 600 oC), to the incorporation of La and Sr ions into the manganite structure, ending eventually in the formation of pure monophase LaSr-manganite after calcination at 1100 o C.
The peculiar, stoichiometry-dependent formation pathways of La1-xSrxMnO3+δ might be significant in contributing to the understanding of complex chemistry that defines potential spectrum of inherent properties of perovskite manganites, and the field of application thereof.

The exfoliated structure of PA6nano composites was examined by the TEM technique (The JEOL-2000EX transmission electron microscope, Japan Electron Co. ).
As shown in Fig.1, the micrograph of PA6nano composites containing 5 phr of organic montmorillonite reveals exfoliated silicate layer structures [14].
Fibre Chemistry, 2004;36(3):200-205
Industrial & Engineering Chemistry Research, 2002; 41(9):2107-2114

Influence of Monochlorotriazine-β-cyclodextrin Treatment on Dyeing and Fastness Properties of the Hot-dyeing Reactive Dye on Cotton Chotima Sodsangchan1, a, Jantip Setthayanond1,b and Potjanart Suwanruji2,c 1Department of Textile Science, Faculty of Agro-Industry, Kasetsart University Bangkok, Thailand 2 Department of Chemistry, Faculty of Science, Kasetsart University Bangkok, Thailand achotima_pao@hotmail.com, bJantip.s@ku.ac.th, cfscipjs@ku.ac.th Keywords: MCT-β-CD, Reactive dye, Cotton, Fastness properties, Finishing Abstract.
Cyclodextrin has a toroidal-shaped structure with the primary and secondary hydroxyl groups on the outside surface.
This structure lends them a special property that their exterior is hydrophilic while the interior is hydrophobic.
Hirsenkorn: Journal of Inclusion Phenomena and Macrocyclic Chemistry Vol. 25(1) (1996), p.191-196.

The model dye of Acid Orange 7 (AO7) was obtained from Sigma and the chemical structure of which is shown in Fig. 1.
Chemical structure of AO7.
Verstraete: Chemistry Technology and Biotechnol.
Yoo: Chemistry Technology and Biotechnology.

Then, they were characterized using X-ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) in order to study their physical properties affected due the dopant concentration towards their structure.
The presence of dopant concentrations were not found in XRD which might be due to either uniform distribution of dopant in TiO2 lattice, for example Fe3+ has similar ion radii with Ti4+, which Fe3+ may insert into crystal structure of TiO2 particles, or the amount of dopant was too low.
Swaminathan: submitted to Macedonian Journal of Chemistry and Chemical Engineering (2011) [2] S.
Du and Y.Zhang: submitted to Materials Chemistry and Physics (2011) [7] X.

This shows their structures are similar.
The fluorescence enhancement is concerned with both the structure of the complexes and the intramolecular energy transfer.
Handbook of the Physics and Chemistry of Rare Earths, Vol. 3, chapter, 24, (Elsevier, Amsterdam 1979)
Hong: The Application of Spectral Analysis in Organic Chemistry (Science Publishing House, Beijing 1981).

Synthesis, Characterization of the Mn(II) Complex of Rutin and Interactions between the Complex and Serum Albumins Hongxia Li1a, Kunjie Wang1b, Deyi Zhang1c, Yanping Wu1d, Huixia Feng1e, Yi Wang1f and YuMin Song2g 1 College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China 2 College of Chemistry and Chemical Engineering, Northwest Normal University, LanZhou, 730070, China alhxwkj790425@163.com, bwangkj80@lut.cn, cxixizhang@lut.cn, d wuyanping1012@126.com, efenghx66@163.com, f wangyi@lut.cn, gsongym@nwnu.edu.cn Keywords: rutin; rutin-Mn complex; serum albumins; interaction Abstract.
Combine the IR, electronic absorption, and elemental analysis data the imaginable structure of the complex was given in the Scheme 1.
The chemical structure of the complex Fluorescence spectra were recorded at room temperature with the wavelength from 300 to 500 nm ( at an excitation wave-length of 288 nm), and the emission spectra of the free BSA, HSA and BSA, HSA-complex mixtures were measured in corresponding concentration.
Conclusions This work contributes to a better elucidation of chelation chemistry of rutin and transition metals.

This technique was widely adopted in the surface structure research in coal, David [4] uses it to study mineral, synthetic and coal associated pyrites, oxidized for various time intervals at low temperatures with humid air or oxygen.
Coal chemistry [M].
An XPS study of the oxidation of pyrite and pyrites in coal[J] Fuel, 1970,49, 126 [5] LIU Fen-rong, LI Wen, GUO Hui-qing,et al..XPS study on the change of carbon-containing groups and sulfur transformation on coal surface[J] Journal o f Fuel Chemistry and Technology.2011,39(02): 0081-0084
[15] SHINN J H.From coal to single stage and two-stage products:A reactive model of coal structure [J] .Fuel,1984,63 (9):1187-1196.

Conclusions Cubic spinel structured nanoparticles of nickel ferrite were synthesized successfully by sol-gel auto combustion method with an average particle size of 14 nm.
TrAC Trends in Analytical Chemistry, 2014. 62: p. 28-36
Coordination Chemistry Reviews, 2016. 315: p. 90-111
[11] Andersen, H.L., et al., Crystalline and magnetic structure–property relationship in spinel ferrite nanoparticles.