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Preparation and characterization of electrospun poly(vinyl alcohol)/silk fibroin nanofibers as a potential drug delivery system Doudou Zhang1,a, Lixing Dai2,b 1College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Renai Road, Suzhou, Jiangsu, 215123, People's Republic of China 2College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Renai Road, Suzhou, Jiangsu, 215123, People's Republic of China adoudou201327@163.com, bdailixing@suda.edu.cn Keywords: drug-loaded nanofibers; poly(vinyl alcohol); silk fibroin; release.
The morphological structures of vanillin-loaded PVA/SF nanofibers are shown in Fig. 1.
Ethanol treatment could induce an increase of crystallinity, while β-sheet structures of the crystalline in SF resulted in concomitant increase in hydrophobicity of nanofiber mats which can lower the penetration of water into the nanofiber mats.
After submersing in PB solution, the swelling of the nanofiber mat yielded the final swollen network structure and exhibited properties of a hydrogel, enabling the drug to diffuse through the swollen network into the external environment.

Synthesis and Application of Reactive Dyes Containing a Hydroxybenzophenone Ultraviolet Absorber Liang HE1, 2, a, Lihua LU3, b and Defeng ZHAO2, c 1Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China 2State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China 3College of Chemistry and Pharmaceutical Sciences, Qingdao Agriculture University, Qingdao 266109, China alhedlut2002@hotmail.com, czhaodfg@chem.dlut.edu.cn Keywords: Reactive dyes; Anti-ultraviolet; Hydroxybenzophenone Abstract.
Therefore, if UV absorbers could be incorporated into the structure of a reactive dye, the low efficiency of UV absorbers containing reactive groups for treating cellulosic fabrics could be overcome.
In the present case, for example, molecular ion peaks 316.0 ([M-3K]3-/3), 425.6 ([M-HSO4K-2K]2-/2), 474.4([M-3K+H]2-/2), 493.4 ([M-2K]2-/2), 987.9([M-2K+H]) and 1025.8([M-K]) were observed, which supported Dye 2 structure.
Thus, when dyes have the same chromophores, the incorporation of a hydroxybenzophenone group into the parent dye structures can increase the UPF value of the dyed samples.
Acknowledgements We thank the financial support by Zhejiang Provincial Top Key Academic Discipline of Applied Chemistry and Eco-Dyeing & Finishing (No.

The structures of the films were characterized by X-ray diffraction (XRD) (Bruker diffractometer) utilizing Cu Kα radiation (λ=0.15418 nm) and Raman spectrometer (LabRAM HR, Horiba).
As shown in Figure 5, four diffraction peaks are observed at 38.03, 44.30, 64.57 and 77.33°, which can be assigned to the (111), (200), (220) and (311) reflections of face centered cubic structure of metallic silver (JCPDS File NO. 65-2871 from ASTM), respectively.
Reuter, Scientific importance, properties and growing applications of poly(3,4-ethylenedioxythiophene), Journal of Materials Chemistry, 15 (2005) 2077
Park, High-performance, transparent, and stretchable electrodes using graphene-metal nanowire hybrid structures, Nano letters, 13 (2013) 2814-2821
Jiang, Green synthesis of graphene nanosheets/ZnO composites and electrochemical properties, Journal of Solid State Chemistry, 184 (2011) 1421-1427

Thermal Activation on Phase Formation of Alkaline Activated Kaolin Based System Somsak Boonjaeng1,a, Kedsarin Pimraksa2,b, Arnon Chaipanich 1,c, Sutin Kuharuangrong3,d and Prinya Chindaprasirt4,e 1Department of Physics and Materials Science, Faculty of science, Chiang Mai University, Chiang Mai, 50200, Thailand 2Department of Industrial Chemistry, Faculty of science, Chiang Mai University, Chiang Mai, 50200, Thailand 3Department of Ceramic Engineering, Faculty of engineering, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand 4Sustainable Infrastructure Research and Development Center, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand asomsak_boo@cmru.ac.th, bkedsarin.p@cmu.ac.th, carnonchaipanich@gmail.com, d sutin@sut.ac.th, eprinya@kku.ac.th Keywords: Kaolinite; Metakaolinite; Pozzolanic; Alkalinity; Thermal treatment Abstract.
Many works [16-18] has been investigating alkali activation of MK resulting in the production of high-mechanical-performance network-structure materials.
Adding CH to the alkaline activated MK produces a relatively different reaction: both of network structure and C-S-H gel could be formed.
Activated with alkaline solution, the network structure-alkaline aluminosilicate hydrate could be formed both in form of crystalline (sodalite, zeolite) and gel phases (geopolymers) depending on curing temperature [15-19].
Hewlett, Lea’s Chemistry of Cement and Concrete, fourth ed., Special Cement, Linacre House, Jordan Hill, Oxford, UK, 1988, pp. 783-840.

PAHs are a kind of hydrocarbons with more than one benzene ring in the molecular structure, some of which have exhibited carcinogenic, teratogenic and mutagenic properties.
To make the sampling more complete, the glass fiber filters for sampling were placed in a sampler with cylindrical structure, the circumferential location of which was fixed by two layers of stainless steel net[12].
Desorption of polycyclic aromatic hydrocarbons from a soot surface: Three- to five-ring PAHs, Journal of Physical Chemistry A，114 (2010) 942-948
Simulation and experimental study of discharge power for DBD device with coaxial cylindrical structure, High Voltage Apparatus. 6 (2010) 25-28
Simultaneous removal of polycyclic aromatic hydrocarbons and soot particles from flue gas by gliding arc discharge treatment, Plasma Chemistry and Plasma Processing. 26 (2006) 517-525

To obtain the resin in the hard state cross-linking of epoxy matrix a second compound is added as a hardener, for this purpose amines or anhydride. [5] Since the properties of the resins are influence by the chemical structure of the curing agent and also the curing conditions monitoring the behaviour and the kinetics of the curing process are of mayor importance for production.
Another possibility to follow chemical changes during the crosslinking process is to apply Raman spectroscopy. [3, 4, 7] In Raman spectroscopy the interaction of a laser and the examined sample is used to monitor the chemical structure or the composition of materials.
[14] Ivankovic M, Incarnato L, Kenny JM et al., Curing kinetics and chemorheology of epoxy/anhydride system, Journ APPLIED POLYMER SCIENCE 90(11) (2003) 3012–3019 [15] Ellis B, Chemistry and technology of epoxy resins, Springer, (1993)
[20] Farquharson S, Smith W, Rose J et al., Correlations between molecular (Raman) and macroscopic (rheology) data for process monitoring of thermoset composite, JPAC (sm) Process Analytical Chemistry (2002) 45–53
[22] Ullah R, Zheng Y, Raman spectroscopy of ‘Bisphenol A’, Journal of Molecular Structure 1108 (2016) 649–653.

From XRD result, it is found that all the sample under investigated show orthorhombic structure indicating that A site substitution does not modify structure.
Refinement results shows that the Nd1-xSrxMnO3 (x = 0; 0.5; 1) materials has an orthorhombic structure.
The structure of this material shown by Figure 2.
Indeed, it successfully influenced the morphology structure of the sample.
Rojo, Journal of Solid State Chemistry, vol. 174, no. 1, pp. 52–59, Aug. 2003

The crystal structure of the CoMn2O4 nanoparticles with calcination at 600°C for 2h as a function of water/surfactants molar ratio was investigated by X-ray diffraction patterns (Fig.3).
The observed diffraction peaks correspond to the standard patterns of CoMn2O4 spinel structure (JCPDS Card No. 77-0471).
X-ray diffraction pattern of the synthesized particles observed diffraction peaks correspond to the standard patterns of CoMn2O4 spinel structure.
De Grave, “57Fe Mössbauer effect study of Mn-substituted goethite and hematite,” M¨ossbauer Spectroscopy Applied to Inorganic Chemistry vol 3 , ed G J Long and F Grandjean (New York: Plenum) chapter 3 (1986)
Pileni, Structure and Reactivity in Reverse Micelles, Elsevier, Amsterdam Chapter 1 (1989)

Also, thixotropy was evaluated by index of reversible structure of Portland cement paste.
The state of structure before rest could be subsequently regained.
It was set in order to decrease the disturbance of the structure after the peak stress is reached as well as to decrease the deformation due to the broken structure.
The rheology of fresh cement and concrete – a review, in Proc. of 11th International Cement Chemistry Congress, May 2003, Durban, South Africa, 1–13
Engineering Structures and Technologies, vol. 5, no. 4, pp. 175–181, 2014

For this proper administrative structures are needed.
TEKES implemented a new project and technology programme structure, well matching the EU research structures.
The National Technology Agency, TEKES [3], has studied the structure of the participants.
The structure of teaching and research has changed more rapidly during the membership.
In addition materials technology is taught in many engineering disciplines (e.g. chemistry, physics, electronics, information technology, building technology).