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But there are a lot of slivers and cracks on the fiber surface, the fiber bundles are separated, and there are some cavity structures.
Solid particle microscopic structure changes can be observed visually with scanning electron microscopy.
But there are a lot of slivers and cracks on the fiber surface, the fiber bundles are separated, and there appears some cavity structures.
Pure and Applied Chemistry.

Organic fillers along with the inherent valuable properties have a number of specific properties which have a significant effect on the processes of structure formation, structural-mechanical and construction properties of composites.
It should be noted that the extraction of plant components occurs without significant changes to their structure and molecular properties.
Ultrasound causes a number of specific effects: cavitation in fluids, leading to disruption of the diffusion layer and, as a consequence, to rapid penetration of the fluid into the particle structure, extracting the soluble components and quality mixing of the components of the medium.
Sarkar, The chemistry of jute lignin, J.

Mukti1,2,a, Veinardi Suendo1,2, I Nyoman Marsih1, Sugeng Triwahyono3, Suryadi Ismadji4 and Ismunandar1 1Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jln.
The synthesis of this emerging material normally is realized by using toxic cetylpyridinium bromide (CPB) as common structure directing agent in conjunction with combined cyclohexane and n-pentanol as expensive solvent and co-solvent, respectively.
However, the fibers were not clearly seen in the FE-SEM image which may due to the high density of linked fibers.The observed fibrous morphology has a wavy structure rather than a straight fibrous in comparison to the previous reports [1,9].
CTAB as structure-directing agent.

In general, results indicated changes in structure as a function of clay content employed in the systems of PHB / vermiculite.
Experimental Materials The materials used were poly (3-hydroxybutyrate) supplied by PHB Industrial S/A, São Paulo; expanded vermiculite clay provided by Mineração Pedra Lavrada, Santa Luzia-PB and the ammonium salt was alkyltrimethylammonium chloride, ARQUAD T50-E (trade name), manufactured by AkzoNobel Surface Chemistry.
Figure 2: X-ray diffraction patterns for pure PHB and PHB Nat systems It is observed that the systems PHB Nat exhibit prominent peaks in the same region of PHB 2θ (10 to 30°), with no observed change in the crystalline structure of the polymer, this result indicates that the crystalline structure of the polymer was not affected by the addition of clay.

This optical diagnostic technique is also broadly applicable to other optical/infrared metamaterial structures that are proposed or developed in the future.
INTRODUCTION Artificial structures with sub-optical wavelength features can have engineered non-conventional values for material properties such as optical and infrared permeability and permittivity.
Permittivity and permeability can then be derived from the calculated reflection and transmission coefficients.[3] [4] This approach to metamaterials property prediction, structure fabrication, and optical measurement will be broadly applicable to other optical/infrared metamaterial structures that are proposed or developed in the future.
Van Duyne, "Plasmonic Properties of Anchored Nanoparticles Fabricated by Reactive Ion Etching and Nanosphere Lithography," Journal of physical chemistry.C 111, 4116-4124 (2007). 22.
Petroff, "Photonic crystal-assisted light extraction from a colloidal quantum Dot/GaN hybrid structure," Nano Letters 6, 1116-1120 (2006). 24.

The structure of the photocatalyst was studied by means of XRD, UV-Vis spectroscopy and XPS.
In recent years, some compounds with layered structure have showed high photo-catalysis activity in water decomposition.
A highly active photocatalyst for overall water splitting with a hydrated layered perovskite structure.
Chemistry, 2006, 36(2): 139~144 [9] Gopalakrishnan J, Bhat V.
Luminescent Properties of Nondoped and Rare Earth Metal Ion-Doped K2La2Ti3O10 with Layered Perovskite Structures: Importance of the Hole Trap Process.

Gerhard 2 1 University of Erlangen-Nuernberg, Department of Materials Science (III), Glass and Ceramics, Erlangen/Germany, 2University of Erlangen-Nuernberg, Department of Technical Chemistry I, Erlangen/Germany, Keywords: Biomorphous ceramics, Biotemplating, TiC, porous ceramics Abstract.
The bioorganic tissue can be converted into biocarbon preform or template structures (CBtemplates) by pyrolysis in an inert atmosphere.
The micro-morphology of the native wood structures was retained in the final TiC-ceramics after conversion.
The addition of nitrogen in the infiltration vapor can yield the formation of TiCN or graded TiC/TiCN/C-structures.
Biomorphous, microcellular TiC- and TiNC-based-ceramics with a unidirected pore morphology could be of particular interest in corrosion resistant self-heated micro reactor systems or filter structures, as well as for ceramic reinforcement structure for metal matrix composites (MMC) [14].

Results of researches of structure and properties of the nanostructured carbon coatings deposited on a polyurethane substrate are presented in article.
The polyurethane used in medicine, has own polymeric structure and contains high percent of the additives providing decrease in their toxicity and demanded mechanical properties.
Chemistry and chemical technology, 7 (2011) 51-54.

The effect of the composition and the structure on the properties of the composite is studied.
Starch possesses spherical rigid grain structure due to strong polar and hydrophilic behaviors leading to poor thermoplasticity [5, 6].
Chinese Journey of Applied Chemistry. (2004), 21(3): 235~238

Drug release mechanism of fast temperature-responsive soy protein/PNIPAAm IPN hydrogels Yong Liu*1, a, Shoulian Wei1,b and Miaochan Liao2,c 1School of Chemistry and Chemical Engineering, Zhaoqing University, Zhaoqing, P.R.
Structure and Morphology Analysis.
It is found that all the hydrogels show a porous network structure, and the porous structure is significantly influenced by NaHCO3 reaction medium.
The high porous structures in the hydrogel matrices are responsible for the release rate.
All the proposed hydrogels show high porous structures, and have a fast release rate.