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Study on the preparation of 2-phenyl imidazole microcapsule and its effect on curing epoxy resin Aijie Ma1,2, a , Qiuyu Zhang1,b,Youqiang Shi1,c 1Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710129, China 2School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an710032, China amaaijie@xatu.edu.cn, bzhangqy@nwpu.edu.cn, c1004630649@qq.com Keywords: 2-phenyl imidazole, microcapsule, curing, epoxy Abstract.
The micro-morphology, shape and structure of the microcapsules were studied by scanning electronic microscope(SEM) and fourier transform infrared spectrum(FT-IR).
The chemical structure was characterization with the fourier transform infrared spectrometer.
The chemical structure of microcapsules was further characterized in FT-IR spectra.
The exothermic peak area had a difference with the increase of heating rates, may be due to the extent of reaction caused by the gel effect curing reaction, and the different crosslink structure caused by the different temperatures.

Study on the Acrylic Resin Coating Agent Modified by Nanocrystalline Cellulose JIN Liqiang1, a, WEI Yanwei 1, b, and LI Weigong 1, c 1School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, Shandong, 250353, China a jin-liqiang@163.com, b weiyanwei09@163.com, c liweigong829@163.com Keywords: nanocrystalline cellulose, acrylic resin, characterization, film properties Abstract.
The results show that the resulting NCC has a rigid rod-shape structure with crystallinity of more than 80%, 26.51 nm in diameter and 200-400 nm in length.
NCC has a highly crystalline structure, a very high tensile strength and other intriguing electrical and optical properties.
This agrees with the published data indicating cellulose I structure with a high degree of crystalline perfection.
The resulting NCC has a rigid rod-shape structure with crystallinity of more than 80%, 26.51 nm in diameter and 200-400 nm in length

The cross section of untreated and treated tussah silk The Surface Structure of Treated Tussah Silk.
This illustrated that the surface structure of fiber was not damaged during the treatment, but only reacted with some amino acid and then got coloration.
The surface structure of untreated and treated tussah silk The Results of Color Fastness Test.
He: Dyeing Chemistry.

Synthesizes and Properties of A New Unsymmetrical Diarylethene with a Naphthalene Moiety Shasha Wei, Renjie Wang and Gang Liu* Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science and Technology Normal University Nanchang 330013, P.
Introduction Upon stimulation with light, photochromic compounds can interconvert their molecular structures between two isomers with different properties including color, refractive indices, dipole moments, as well as oxidation/reduction potentials, and electro-conductivities [1].
The structures of diarylethene 1o were confirmed by NMR. 1H NMR(400 MHz, CDCl3, ppm):δ 2.07 (s, 3H, –CH3), 2.33 (s, 3H, –CH3), 6.52 (s, 1H, thiophene–H), 7.26 (d, 1H, naphthalene–H), 7.33–7.35 (m, 2H, naphthalene–H), 7.49–7.51 (d, 1H, naphthalene–H), 7.81–7.83 (d, 2H, naphthalene–H).
The phenomena may be ascribed to more planar structure and stabilization of molecular arrangement in solid state [12].

The surface chemistry and composition were characterized using a Kratos Axis Ultra DLD X-ray photoelectron spectrometer (XPS) with a monochronmatic Al Kα X-ray source.
It has been found that, for the powder processed with a short milling time, eg 4 hours, a coarse composite structure was formed, with Al particle size being in the range of 0.5 mm to 2 mm in diameter.
Further milling gradually led to a significantly refined structure.
Surface structure of the PVD coating which was produced by cathodic arc deposition under N2 atmosphere.

The efficient dispersion of powder solids is of great importance in many industries such as the food industry, pharmacy, metallurgy, chemistry and the mineral industry [2].
The micronized powder, sometimes, is dispersed by flowing air through a certain geometry structure like tube [3].
Due to the complexity and diversity of powder dispersion structures, mesh types may affect the simulation results, and to the best of our knowledge, there is limited literature in this area.
Diagrams of physical model of the airflow dispersion tube and mesh types near the outlet cross section. a: airflow field model structure, b: cross-sectional slice of the tetrahedral meshes, c: cross-sectional slice of the unstructured hexahedral meshes, and d: cross-sectional slice of the prismatic-tetrahedral hybrid meshes.

Introduction Titania with sell-core structure will be a promising candidate in medical field when it was deposited on Ti substrate.
When the Ti substrate was soaked in the definite solution, titania with shell-core structure could be deposited.
The mechanism of this special structure can be explained as below: PS was positively charged by SDS, then the TiO2 nano-particles were absorbed on the surface of PS, thus PS was encapsulated by TiO2.
Shi: Chinese Journal of Inorganic Chemistry Vol.22 (2006), P.1196

Fabrication of Superhydrophobic Coatings on Copper Substrate Hongqin Liu 1,a, Wei Pan 2 and Baocai Xu 1,b 1School of Food and Chemical Engineering, Beijing Key Laboratory of Flavor Chemistry, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Technology and Business University, Beijing 100048, China 2State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China aliuhongqin@th.btbu.edu.cn, bxubaoc@btbu.edu.cn Keywords: Superhydrophobic surface; Copper; Cu(OH)2 films Abstract.
SEM images at higher magnification reveals the tubular structure of the Cu(OH)2 wires and protuberance composed of tightly inlaid nanosheets[9].
From the dramatic change of wettability, it can be concluded that the special hierarchical structure, along with the slow surface energy leads to the surface high superhydrophobicity.
Lu, Fabrication of stable superhydrophobic supric hydroxide surface with hierarchical structure on copper substrate, Journal of Beijing Institute of Technology. 18 (2009) 339-344.

Photo-induced fluorescence enhancement of BOPIM–dma in moderate polar solvents Jindong GONG, Wei ZHANG, Ping SHEN, Mingxun YAN, Changying YANG* College of Chemistry and Life Science, Three Gorges University, Yichang 443002, PR China *email: yangcy12@gmail.com Keywords:Twisted intramolecular charge transfer (TICT); BOPIM-dma; UV irradiation; photo-induced fluorescence enhancement (PIFE) Abstract.
Introduction Scheme 1 The structure of BOPIM-dma.
The possible mechanism is the conversion of TICT emission to ICT emission, corresponding to the structure change from twisted to planer.
The possible mechanism is the conversion of TICT emission to ICT emission, corresponding to the structure change from twisted to planer.

Tianjin Key Laboratory of Chemistry and Analysis of Chinese Materia Medica, College of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China a13299991605@163.com, b 767341510@qq.com, c liuyuetjutcm@163.com, d 15022611743@163.com Keyword: Cucurbitacin, star PLGA, drug-loaded microsphere Abstract.
Poly(lactide-co-glycolide)(PLGA) is all known to be non-stimulating, non-toxic, biocompatible and biodegradable biomaterials, are now widely used as drug carriers[4].It was reported[5] that branched PLGA polymer structure could bring drug entrapment and release performance improvements.
The structure of Star-PCL-OH was characterized by HNMR.
More drugs could be entrapped from three-dimensional space and multiple directions due to multiple long-arm structure of polymer.