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The physical properties of BN are mostly governed by its atomic structure.
A high-pressure diamond-like modification with a cubic zinc-blende structure is also known [1,2], but will not be further described here. h-BN consists of a layered structure, comprising a network of (BN)3 rings.
The binder systems are based on the fundamental principles of sol-gel chemistry and nanotechnology, providing binder systems that are especially suitable for long term applications under extreme conditions.
Especially the effect of the binder phase chemistry of typical h-BN products will be described here in more detail: · B2O3 is the natural binder phase of h-BN.
Schwetz: Encyclopedia of Industrial Chemistry, Wiley-VCH Verlag GmbH (1999)

Results and Discussion Structure Interaction Studies of Composites.
Conclusion Bio-composites rPP/DVB/AA/KF containing fire retardant mixtures of [MH+ATH] with and without addition BA were studied for their structure interactions, flammability, biodegradability and mechanical properties.
Eissen: Concepts on the contribution of chemistry to a sustainable development.
Astasari: Flammability, Biodegradability dan Mechanical Properties of Bio-Composites Waste Polypropilene/Kenaf Fiber Containing Nano CaCO3 with Diammonium Phosphate, Procedia Chemistry, vol.4:282-287 (2012) [13] B.R.
International Journal of Carbohydrat Chemistry (2011) [15] J.

Miscellaneous fill’s secondary open-cut slope reinforcing mesh supporting structure system, horizontal lateral supporting structure of foundation pit and the rigidity of the supporting structure, the nature of the soil, underground water level, excavation engineering are closely related to environmental conditions.
Supporting structure, in the process of loading unloading, ongoing interaction with the soil, the whole process is a dynamic equilibrium.
The location and the settlling volume of maximum settlement points and the supporting structure stiffness, length of anchor cable, soil porosity, and the size of the anchor chain's prestress and supporting structure factors are related.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)

People show more and more interests to the reasonable design and construction of metal-organic coordination polymers based on supramolecular chemistry and crystal engineering.
The structure was solved by direct methods and refined by full-matrix least-squares techniques using the SHELXTL program package [13].
Results and discussions Description of the crystal structure.
The extensive N-H···O hydrogen bonding interactions lead to the formation of an infinite 2D structure, aside from hydrogen bonds, weak π···π interaction is also observed which make the complex structure more stable.
The hydrogen bonds and the π···π interactions make the 2D structure extend into a three-dimensional supramolecular architecture.

Structure Characterization and electrical conducticity measurement Morphologies of the resulting PANI were measured with a JEOL JSM-6700F field emission scanning electron microscope (SEM).
The molecular structure of the nanofibers was characterized by UV-visible spectra (Hitachi UV3100) dissolved in m-cresol and FTIR (Bruker Tensor 27) spectra.
The molecular structure of resulting PANI.
The effect of the molar ratio of FeCl3 to aniline (represented by [FeCl3]/[An]) on the product structure and electrical properties were also investigated.
[6] “CRC Handbook of Chemistry and Physics”, (Eds.: R.C.

The ideas of green chemistry, clean production, clean catalysis, degrading material, atomic economic reaction should be deep embodied into the development of new chemical technology.
If transform partly NPS pollution to PS pollution by rationally laying out industry structure, NPS can be reduced and prevented from the pollution origin.
Moreover, release rate can be adjusted by changing the chemical structure of carrier.
The management scenarios included agriculture and municipal water use, tillage trends in agricultural lands, cropping systems, fertilizer and animal waste management and flood control structures. 
First, NPS pollution should be partly transformed into PS pollution by rationally laying out industry structure, which facilitates the reduction of NPS pollution load.

The modification of mineral powders influences the factors of structure formation of asphalt concrete.
The significant strengthening of the structure-forming role of the mineral dust in asphalt, and hence the improvement of structural-mechanical properties of the material can be achieved by physical-chemical activation of powder.
Consequently, in the case of stearic acid in a mixture of bitumen with mineral powder becomes more structured by 19 %.
Chemistry of new materials and nanotechnologies.
Bitumen and bitumen composites. - Moscow: Chemistry, 1990. – p. 256

(a) (b) Fig. 2 Microstructure of sepiolite samples (a) Acid purified sepiolite; (b) Defibred sepiolite From Fig. 2(b), it can be seen that the sepiolite keeps its fibrous micro-morphology after defibering treatment due to its specific crystal structure and using microwave chemical technique, which does not have any breakage for sepiolite fibers.
From Fig. 3 we can also see that the main crystalline structure of all sepiolite samples does not change apparently and no new phase is formed, indicating that the crystalline structure of sepiolite is kept after defibering treatment [18-20]. 3.4 FTIR of sepiolite samples Fig. 4 shows the FTIR spectra of acid purified sepiolite and defibred sepiolite.
Sotelo, et al.: Journal of Natural Gas Chemistry, Vol. 16(2007), p. 235 [8] G.
Girgin: Turkish Journal of Chemistry, Vol. 26(2002), p. 431 [16] A.K.
Akyuz: Journal of Molecular Structure, Vol. 744-747(2005), p. 47

If no impression is left over the surface, the brick is treated to be sufficiently hard. 4.6 Structure test In structure test, a brick is broken and its structure is inspected for cracks. 4.7 Dimensionality test Dimensionality test shall be carried out according to IS: 2185-Part 1 specification.
Sumajouw , “Studies on fly ash-based geopolymer brick”, Geopolymer: green chemistry and sustainable development solutions
Geopolymer Chemistry and Properties.
[7] Warner, R.F., Rangan, B.V., Hall, A.S. & Faulkes, K.A. (1998).Brick Structures.

The molecular structure of fiber cross-linking agent usually contains some reactive groups, which can react with hydroxyl group, amino group, etc.
The self-polymerization of unsaturated double bonds under the action of ultraviolet light forms the network cross-linking structure to protect the existing hydrogen bonds via epoxy groups to give extensive cross-linking within the fibers. 1 Experimental 1.1 Experimental Materials St, chemical pure (CP); GMA, technical pure (TP); isoprene, CP; sodium dodecyl sulfate (SDS), CP; sodium persulfate, analytically pure (AP); trisodium phosphate (TSP), AP.
Absorption peaks at 1600 cm-1 and 1583 cm-1 are a characteristic absorbance of benzene and the spectrum indicates that the benzene structure remained in the polymer. 2.5 Detection of micro-structure of handsheets Strength of paper mainly depends on the strength of the fiber itself and the strength of the bonding between the fibers.
[5] GH Zhang, the Principles and Application of Wet End Chemistry, first ed., China Light Industry Press, Beijing 2006
Synthetic Chemistry. 11 (2003) 509-512