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In this paper, through melt overheating treatment, the influence of liquid-liquid structure change (LLSC) on the structure and properties of SnZn8Bi3 Pb-free solder alloy has been studied.
So the melt structure is microheterogeneous at the temperature not too far above the liquidus [15,16].
With the change of melt structure, the solidification process should be affected.
It may be attributed to the refinement of the solidification structure.
Zu, L.J.Liu, et al.: Physics and Chemistry of liquids, vol.45, No.5 (2007), p.531- 539 [5] F.Q.

When benzene was excited to a superposition state it is a single Kekulé structure.
In the case of phenanthrene molecule its molecular structure is shown in Fig .2.
The main difference is their structures between the cata-condensed and peri- condensed PAHs.
Industrial & engineering chemistry research 36.6 (1997): 2041-2050
Wang in: Computer and Applied Chemistry Vol.29-10 (2012): p.1221(In Chinese)

It is widely used in chemistry agitating vessel.
This type of structure is widely adopted.
This type of structure is adopted only for smaller torque magnetic transmission.
Its transmission torque can come up to the 1/4 compared with the structure in 2.1.
For structure 2.3, B comes from the formula (10) directly.

After that, the scientists of Russia and Spain did further study on the synthesis, structure and spectrum property of various doped molybdate crystal[1-4].
It is concluded that the available molybdate can be classified into scheelite-like double- molybdate and pamierite quadruple-molybdate according to its structure.
That also further confirms the deduction that the disorder structure of molybdate is able to broaden heterogeneously the absorption spectrum.
Acknowledgements This work was supported by the Fund of Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Science(CAS) and the Fund of Guangdong Natural Science (9178922035-X000002).
Journal of Solid State Chemistry, Vol.179(2006),p.3550

Study on the Structure and Performance of the Large Diameter PPS/PA6 Blending Monofilaments Haiyan MA 1,2,a, Zhaofeng LIU 1,b, Jun ZHANG 2,c and Haijun MA 2,d 1Donghua University, State key laboratory of fibers modification, Shanghai 200051, China, 2Nantong university, College of chemistry and chemical engineering, Nantong, Jiangsu 226000, China amhyan2528@163.com,blzf@dhu.edu.cn,cillogical97@163.com,dmahaijun123@yahoo.cn Keywords: Polyphenylene sulfide, nylon, blend, structure, mechanical property.
The influence of the structure of the blends on the blending monofilaments, the comparative analysis with relevant polymer monofilaments and the acid and alkali resistance were studied in this article.
In this study, the PPS/PA6 blending modification of large-diameter PPS-based monofilaments were prepared to improve the abrasion resistance and mechanical performances, and then the structure of the blend system and the mechanical performance were also explored.
Characterization of monofilament structure and mechanical performances.
B C E F Fig. 2 the SEM diagram of the PPS/ PA6 blending monofilaments in different blending ratio It was evident from Fig. 2 that structure of the PPS/ PA6 blending monofilament became dense with the addition of PA6, the blending interface was blurred, it showed that the compatibility of PPS and PA6 was nice.

Study on Structure of Amphoteric Starch and Its Reinforcing Effect on Secondary Fiber Hongwei Zhang1,a, Guoping Zheng 1,b State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China, 510000, China a hwzhang@scut.edu.cn, b zhguoping@gmail.com Keywords: Amphoteric Starch, Structure, Secondary Fiber, Reinforcing Effect Abstract.
The structure of the amphoteric starch was characterized by FTIR and XRD.
The effects of modifier on starch structure, morphology, performance and strengthening effects on secondary fiber are also discussed.
The results demonstrate that esterization not only occurrs in amorphous regions, but also destroys crystalline structure.
Qiu: Wet End Chemistry (Chemical Industry Press, Beijing, 2006) [2] S.L Shi, F.W He: Analysis and Detection of Pulp and Paper Papermaking (MIT Press, Beijing, 1997) [3] S.M Xu: Research on Preparations of Amphoteric Starch Using the Semi-dry Process (Dalian University of Technology, Dalian, 2002) [4] Y.S Zhang: Production and Application Manual of Modified Starch (MIT Press, Beijing, 1997) [5] Y.Q Zhao, X.W He, J.G Wu: Modern Chemical Industry Vol. 27 (2007), 67-69 [6] Y.R.

Preparation and characterization of konjac glucomannan gel Dongying Xu 1，a, Zhengfu Liao2，3，b*, Hui Wang2，c 1College of Light Industry and Food Science, South China University of Technology, 510640 Guangzhou, China 2Faculty of Materials and Energy, Guangdong University of Technology, 510006 Guangzhou, China 3Key Laboratory of Cellulose and Lignocellulosics Chemistry, Guangzhou Institute of Chemistry, Chinese Academy of Sciences, 510650 Guangzhou, China axudongying123@126.com *bliaozhengfu@126.com cshuixin@126.com Keywords: Konjac glucommanan(KGM); Gel point; Preparation; Characterization Abstract: Konjac glucomannan (KGM) gel was prepared by alkali catalyzed in aqueous solutions.
The structure of the KGM gel was characterized by Fourier transform infrared (FTIR) spectroscopy and wide angle X-ray diffraction (WAXRD).
The results showed that the molecular chain structure of KGM gel is more regular than that of the pure KGM.

The structure and density of tissues and organs are viewed in an imaging mode.
Jin: Coordination chemistry reviews Vol. 381 (2019), p. 104-134
Yan: Chemistry : a European journal Vol. 18 (2012), p. 5558-5564
Hakeem: Frontiers in chemistry Vol. (2021), p. 1244
Kim: Analytical chemistry Vol. 88 (2016), p. 2742-2746.

The molecular structure of this film have been investigated by using FTIR and also by IRRAS methods.
The chemical structure of the molecule is shown in Figure 1.
The chemical structure of Disperse Orange 3 [5].
This suggested that fabrication process of thin film of the DO3 molecule structure do not undergo a structural changing or molecular structure damage.
Amminudin (ITB Chemistry Department Laboratory) for helping measuring the FTIR/IRRAS and UV-VIS measurement.

Intercalation of Gelatin in Monohydrate zirconium Hydrogen Phosphate Yuandong Sun1 and Ling Tang2,a 1,2Department of Chemistry, Bengbu Medical College, Bengbu, Anhui 233030, China a The corresponding author: e-mail: t-angt-ang@163.com Keywords: layered compound; gelatin; intercalation; a-ZrP Abstract.
Introduction Considerable attention has been paid in recent years to the retention of organic molecules and polymers by layered structured materials1.
More recently, other layered inorganic structures, such as acid zirconium phosphate, titanium phosphate and vanadyl(IV) phosphate, have been used as host layers to separate and accommodate interaction with organic molecules [1-3].
Two-dimensional structured material composites with biochemical layers are capable of immobilizing enzymes to form bio-functional compounds.
Jacobson, Intercalation Chemistry, Academic Press inc., New York, 1982