Jonathan M BrotchieFigure 2.1. Chemical structure of: (a) PEI (Ultem 1000) and (b) PVA (Mw ~ g mol-1).Figure 7.2 Chemical structures of (a) 1,6-hexanedithiol (HDT) and (b) 1, 8-octanedithiolChemical structures of (A) AS2031477. (B) AS1975063. (C) AS2034178....
Structure of the sex pheromone-producing prothoracic glands of the male old house borer, Hylotrupes bajulus (L.) (Coleoptera: cerambycidae) Pheromone glands were discovered in the prothorax of male Hylotrupes bajulus (L.) (Coleoptera : Cerambycidae). These exocrine glands were investigated by ....
A comprehensive study of the functional-group composition and structure of hexane-insoluble asphaltenes of coal tar pitch was carried out by methods of chemical elemental analysis, nuclear magnetic resonance (NMR), IR spectroscopy, scann... SA Sozinov,LV Sotnikova,ANPR Ismagilov - 《Journal of Ph...
which forms part of the many sluggish tidal creeks that drain into the Lagos Lagoon at Yaba Local Government Area of Lagos State, Nigeria (Fig.1). Makoko in Lagos State is located within the coordinates of Latitude 6.29ºN and Longitude 3.23º E of the Equator...
Biosurfactants, as microbial bioproducts, have significant potential in the field of microbial enhanced oil recovery (MEOR). Biosurfactants are microbial bioproducts with the potential to reduce the interfacial tension (IFT) between crude oil and water,
2,5-Hexanedione is many times more potent than hexane, the parent compound, in causing neurotoxicity in experimental animals. It appears that the neurotoxicity of 2,5-hexanedione resides in its g-diketone structure since 2,3-, 2,4-hexanedione and 2,6-heptanedione are not neurotoxic, while 2...
Schematic overview of TPU The polyols used in this reaction are generally polyester, polyether or polycarbonate diols with molecular weights of between 1000 and 4000. Some common short-chain diols are butane diol, hexane diol or aromatic diols. For the diisocyanate component, diphenyl meth...
Kitag were extracted with n hexane and analyzed by capillary gas... F Zhang,L Wang,Q Luo,... - 《Chinese Journal of Chromatography》 被引量: 29发表: 2002年 Comparative Analysis on Traits of Asarum heterotropoides Fr. Schmidt var. mandshuricum(Maxim. ) Kitag of Different Strains [...
Subsequently, after a couple of minutes at the same pressure and temperature, the fluorescence disappeared with a new weak peak appeared at 1606 cm–1, indicating the formation of extended carbon structure (Fig. 3b). This is a process of dehydrogenation from alkane to conjugated hydrocarbon,...
Figure 1: Structure of chemical constituents (Tannins) of Terminalia chebula (1-31).Figure 2: Structure of Phenolic Carboxylic Compounds (32-37).Figure 3: Structure of Phenols (39-40).Figure 4: Structure of Terpenoids and Triterpene Saponins (41-59)....