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The formation of cubic structures was confirmed by scanning electron microscopy (Fig. 2).
Jianqin Zhuang of the Department of Chemistry, College of Staten Island for conducting some of the BET and FTIR experiments.
Tang, Chemistry (2016)
Saito, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 22 (2006) 1031-1034
Roduner, Physical chemistry chemical physics : PCCP 10 (2008) 2952-2963.

See table 1 for their main chemistry and mineral composition.
Table 1 The chemistry and mineral composition of cement Number SiO2 Al2O3 Fe2O3 CaO MgO R2O SO3 f-CaO Loss C3S C2S C3A C4AF HBC1 22.76 4.61 5.40 60.37 4.84 0.51 0.70 0.21 / 31.59 41.42 3.09 16.42 HBC2 22.81 4.87 5.49 59.91 4.76 0.52 0.45 0.15 0.22 26.60 45.31 3.62 16.68 MHC 20.87 5.07 5.71 62.18 4.28 0.52 0.57 0.46 0.25 50.04 22.07 3.76 17.38 Phosphorus slag is from china hydropower eight bureau, its chemical composition was showed in table 2.
The observation for broken section of mortars shows that, the internal structure of mortar eroded by sodium sulfate solution become more dense, pore number decreases greatly, shinning crystals can be seen clearly, tenacity of mortar bending damaged increase significantly.
Surely, the strength of mortar will decreases until the structure of mortar damages, the erosion coefficient K will be less than 1.

Alumina Nanofibers Prepared by Coupling Sol-Gel with Electrospinning method Zhihua Zhao1, a, Yushan Cheng2, b, Qian Liu3, c, Yuanyuan Zhou* 4, d 1College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China 2Energy Research Institute, Henan Academy of Sciences, Zhengzhou, 450008, China 3College of Chemistry and Molecular Engineering, Zhengzhou University, 450001, China 4Institute of Environmental &municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450011, China azzuzhaozhihua@gmail.com, bchengyushan09@163.com, c 540393601@qq.com, dzhouyuanzy2004@163.com Keywords: pseudo-boehmite, electrospinning, alumina, nanofiber Abstract.
The scope and utility of alumina fibers can be further broadened by transforming them to nanofibrous structures that exhibit high surface area to volume ratios[6].
The PVP(1300000 weight-average molecular weight) was purchased from Aladdin Chemistry Co.
The uniform colloidal particles are helpful to form alumina nanofibers with homogeneous structure.

Amylase immobilized on a reticulated polymer containing rosin group Qian Zeng1,2,a, Hao Ma1,2,b， Fu hou Lei1,2,c, Hong quan Liu1,2,d， Cui hong Tang1,2,e 1College of Chemistry and Ecological Engineering, Guangxi University for nationalities, Nanning, Guangxi, 530008, China 2Key laboratory of development & Application of forest chemicals of Guangxi, Guangxi University for nationalities, Nanning, Guangxi, 530008, China azxtx0000@sina.com , bmahao2832798@163.com，cleifuhou@163.com，dlhongquan@163.com etangcuihong273@163.com Keywords: Amylase immobilization; Amylase; Rosin group; Reticulated polymer Abstract.
Compared with carrierII, there was higher mechanical strength and lower moisture content in carrierI，which was likely caused by rich pore structure.
Moisture content and mechanical strength of the carrier Moisture content (%) Mechanical strength (kg) carrierI carrierII 61.4 60.0 1.30 1.63 Fig.1 SEM images of carrier(×300) a: carrier, b: carrierII Fig 1 showed in from the CarrierI&II images at 300 magnification, it can be seen that there are many pits and rich pore structure in this synthetic polymer carrier.
Vezir Kahraman, Nilhan Kayaman-Apohan: Food Chemistry Vol.104 (2007), P. 1385

The modification of the HPAM structure could enhance the interlayer activity in a certain extension.
Oil with small molecular structure would stay on the top of the layer, while for polymer and water clarifiers are with heavy molecular weights and remain dissolved in the water phase.
Chinese Journal of Analytical Chemistry, 2004, 32(4): 503
Chinese Journal of analytical chemistry,2004, 32(4):503

Synthesis of PMMA by Single-Electron Transfer Radical Polymerization Using Benzyl Chloride as Initiator Changqing Fu, Xiaobo Wei, Liang Shen* Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013,P.R.China email: flyto2173@yahoo.com.cn; shenliang0791@yahoo.com.cn Keywords: benzyl chloride; methyl methacrylate; single electron transfer living radical polymerization (SET-LRP) Abstract.
The structures of polymers were characterized by 1HNMR spectroscopy on a Bruker AV 400 MHZ spectrometer, with tetramethylsilane (TMS) as the standard, CDCl3 as the solvent.
The structure of the polymer was evaluated by 1H NMR spectroscopy (Fig.1).
Lv: Applied Chemistry (Chinese).

The DPA may have adverse effect on health of humans and wildlife by mimicking or altering the functions of natural hormones.[3] Therefore, investigation of photodegradation of DPA is significance for environmental chemistry in aqueous solution systems.
Chemical structure of DPA, α-CD and β-CD is presented as Figure 1.
Figure 1: Chemical structures of DPA (left) α-CD (middle) and β-CD (right) Photodegradation Experiment.
Walton, Analytical Chemistry 23, (1951), 1160

Introduction The electrostatic layer-by-layer (LbL) self-assembly is a versatile bottom-up nanofabrication technique originated from the area of material science, chemistry, and nanotechnology over the last decade[1-2].
Their chemical structures of PDDA and PSS were given in Fig.1.
Fig.1 Chemical structure of PDDA and PSS Fig.2 QCM testing apparatus Self-assembly Experimentation Self-assembly experimentation with various ionic strength: Polyelectrolytes used were 10mg/L PDDA and 3 mg/L PSS solutions with 0, 0.25, 0.5, 0.75mol/L NaCl in all solutions for enhancing the ionic strength, respectively, and the assembling duration for monolayer is 10min.
(c) (b) (a) Fig. 7 Real-time monitoring curve (a), frequency shift (b) and Self-assembled film thickness (c) versus cycle number Conclusion Electrostatic LbL self-assembly technique is currently the subject of extensive research worldwide in the area of material science, chemistry, and nanotechnology.

Aprígio Veloso, 882, Campina Grande, 58109-970, Brazil, phone/fax: (55 083) 2101 1178 2Department of Chemistry– UFPB – Cidade Universitária, João Pessoa, Brazil 3Department of Chemistry-UFRN- Av.
The production by the traditional method of obtaining ceramics creates coarse particles and disordered structures, which took to the development of new methods of powders obtaining with the structure of submicron size and better characteristics [3].

Synthesis and Characterization of a New Magnetic Polyurethane Material XiaSong1,a, DandanLi2,b, XiaoyanLi3,c, JianhuaGong4,d,YajuanZhao*5,e Chemistry and materials engineering institute, Wenzhou university Wenzhou 325000, P.R.
The composition, structure, and magnetic properties of the precipitates were analyzed.
And their structure was characterized by Fourier transform infrared spectroscopy (FTIR) using the attenuated total reflection method and the transmission method at room temperature (23±2˚C).
Macromolecular chemistry and physics,2007,208,2677-2685 [8] Yinghui Wen, Changming Cheng, Hongchen Gu.