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Preparation and Thermosensitivity of Poly(N-isopropylacrylamide) hydrogels with Graded Structure QiongJiao Yan* Biomedical materials and engineering center, Wuhan university of technology, Wuhan 430070, PR China.
The graded hydrogel displays faster and hydration/dehydration dynamic response to temperature cycling owing to slightly cross-linked PNIPAM chains to form big-hole structure.
The proposed hydrogel structure provide a new mode of the phase transition behavior for thermo-sensitive "smart" or "intelligent" monodisperse micro-actuators, which is highly attractive for targeting drug delivery systems, chemical separations, sensors and so on.
The graded hydrogel presents faster, larger magnitude and hydration/dehydration dynamic response to temperature cycling due to slightly cross-linked PNIPAM chains to form big-hole structure.
Journal of Polymer Science Part A: Polymer Chemistry.

Study on Properties of Thin Layer Skid-resistance Material in Tunnel Paving Huiqiang Chen1,a ，Boming Tang2,b 1NO.66 xuefu Road Nan’an District Chongqing,China 2NO.66 xuefu Road Nan’an District Chongqing,China achqlxj@126.com, btbm@netease.com Key words: skid-resistant；multicolour；tunnel paving；TSRM Abstract: In order to reduce traffic accidents in tunnel, a type of new road material with excellent skid resistance and multicolour which was abbreviated to TSRM was studied in this paper, and its properties were analyzed and characterized by means of testing its cohesive force, shearing strength, water stability, chemistry stability and skid-resistance on the basis of the former studies.
Paving structure of TSRM was showed in figure 1.
small stone（3～5㎜） small stone（3～5㎜）； TSRM（3～4mm）； TSRM（3～4mm） primer coating （0.2～0.3㎜） cement concrete pavement bitumen concrete pavement Figure1 Paving structure of TSRM. 1.2 Curing mechanism of TSRM The curing course of TSRM was accomplished by two steps.
Tunnel Structures, 1998, Vol.78:469~474 [4] HU Gong-hong1; Fan Yunfei.
Materials and Structures, 2005, V32(5):515~522

This paper introduces the basic characteristics and properties of natural stone, Starting from the classification of natural building stone, Through the stone rock composition and stone of physics, chemistry, decorative research and sum up, In order to form a complete system of landscape designers identify, selection and use of stone materials, Based on this system, further research the stone in modern landscape application form and the construction technology, and discuss the existing problems in the process.
Stone mineral refers to with the chemical composition and structure characteristics of the element or compound, to a certain extent determines the chemical properties, physical properties and process ability of stone. stone material chemical composition is to point to which contains the chemical composition of the mineral, mainly including: simple substance, carbonate, sulfate, silicate, phosphate, sulfide, halide, oxide and hydroxide, etc.
Due to the dry hang series of different also appeared a variety of dry hanging method, Dry stone pendant form determines the dry hanging granite forms, is the main pin type, butterfly type( up and down, two double ) , welding type , back bolt type, back hanging type( hidden suspension ) , hanging type, structure type, joint form of SE series.
Conclusions Stone material production and applications of complement each other, when the design need, promote the production of some stone varieties, When a new stone varieties were produced, architects, landscape division and structure division according to the nature of the stone to creative use of these new materials, it promoted the development of the design.

The crystallinity, morphology, and structure of the TiO2 fibres are illuminated.
The surface structure of the TiO2 nanosheet was observed by using a Hitachi S-4800Field Emission Scanning Electron Microscope (FESEM).
The fibrous structures of the samples were about 10–15 μm in diameter and 0.5–2 mm length.
Lieber, One-dimensional nanostructures: Chemistry, physics & applicationsb, Solid State Commun. 107 (1998) 607-616
Fan, Novel Photoanode Structure Templated from Butterfly Wing Scales, Chem.

Li1,a 1 College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China 2Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China alihui1012@yahoo.com.cn Keywords: Cohesive energy; Wulff construction; Nanoparticles Abstract.
However, with size increasing, BCC structure can be found.
The structure uncertainty is the key difficult to realizing the above object.
It should be noted that Na and Zs are the functions of both size and structure.
That is to say, the structure of a solid must be determined.

Characterization of pore structures.
Figure 2 shows SEM images of phase-separated structure in a capillary with different internal diameters.
With this respect, the material has hierarchical pore structure.
Scherer, Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing, Academic Press, New York, 1990, pp.140-141
Flory, Principles of Polymer Chemistry, Cornell University Press, Ithaca, 1971

The study of the crystallographic structure of this material was recorded.
Asian of Chemistry, 33-1 (2021), 1208-1214
Gong, Excellent Capacitor–Varistor Properties in Lead-Free CaCu3Ti4O12–SrTiO3 System with a Wrinkle Structure via Interface Engineering, J.
Mei, Synthesis of the Giant Dielectric Constant Material CaCu3Ti4O12 by Wet-Chemistry, J .American chemical society, 19-24 (2007),6020-6024
J. of Physical Chemistry , 113 (2009), 6156 – 6162

Structure and Properties of Copolymer Tannage of Vanillin and Gallic Acid with HRP Initiation Shenghua Lv 1,a, Xiaoliang Yan1,b and Qiang Cao2,cP 1 College of Resource and Environment, Shaanxi University of Science & Technology, Xi’an, 710021, Shaanxi, China 2 College of Chemistry and Life Science, Weinan Normal University, Weinan 714000, China alvsh@sust.edu.cn(corresponding author), bsxyxlbbc@163.com, clab_cao@tom.com Keywords: horseradish peroxidase; enzymatic copolymerization; tanning agent Abstract.
The chemical structure of the copolymer was characterized by means of FTIR, NMR and GPC.
The polymer of phenols has π conjugated structure and the activity of phenolic hydroxyls can be improved.
The structure of the copolymer was characterized by FTIR, NMR and GPC.
The structure of the copolymer was identified by FTIR, NMR and GPC.

The plasma treatment extended porous structure, changed surface morphologies, and produced oxygen functional groups on the surface of AC.
During this process, little textural change might take place; however, there would be a substantial change in the surface chemistry of the AC.
Industrial and Engineering Chemistry Vol. 16 (2010), p.91–95 [2] Information on http://www.wcponline.com/pdf/0806Gaur_Shankar.pdf [3] J.

An innovative low density synthetic carbonate with a composite structure Marion Lorgouilloux1,a, Robert Gärtner1,b, Thierry Chopin1,c Lhoist Recherche et Développement S.A., rue de l’industrie 31, 1400 Nivelles, Belgium a marion.lorgouilloux@lhoist.com, b robert.gaertner@lhoist.com, c thierry.chopin@lhoist.com Keywords: precipitated carbonate, dolomite, low density, filler, composite structure Abstract: A new low density mineral material has been synthesized via a simple, flexible, cheap and easy to control process.
This structure can be described as a core-shell structure.
Due to this structure, dolomite could be considered as a solid solution of CaCO3 and MgCO3.
The EDS analysis of some of the spherical aggregates showed that this product has a core-shell structure, the core being richer in Ca than the shell, that is in contrary richer in Mg (Fig. 3).
Boynton, Chemistry and Technology of Lime and Limestone, second ed., Wiley and Sons, New York, 1980 [7] R.G.C.