منابع مشابه
Modification of Chinese Fir with Alkyl Ketene Dimer (AKD): Processing and Characterization
A process for the chemical modification of Chinese fir with alkyl ketene dimer (AKD) was studied. The hydrophobicity of the resulting products was evaluated by characterization of the equilibrium moisture content, water-surface contact angle, water absorption coefficient, and antiswelling efficiency. The results indicated that when 5% AKD solution was used, the modified wood generally showed go...
متن کاملSimple and Environmentally Friendly Fabrication of Superhydrophobic Alkyl Ketene Dimer Coated MALDI Concentration Plates
Here we present a method to manufacture peptide-concentrating MALDI-plates with alkyl ketene dimer (AKD) as a new superhydrophobic coating. The fabrication of the hydrophobic plates included application of AKD by airbrush, and negative contact printing to generate the concentration sites. Deposited sample droplets were contained within the prestructured sites, and self-adjusted onto the site if...
متن کاملAction of Ketene on Gonadotropic Hormones*
Ketene has been found to be a highly specific,acetylating agent for aqueous solution of proteins. It reacts only with amino, thiol, and phenolic hydroxy groups (1). Several investigators (24) have shown that the primary amino groups react most rapidly, while the hydroxy groups of tyrosine are acetylated at a much slower rate. The hydroxy groups in carbohydrate radicals of the protein molecule d...
متن کاملStudies on the middle phase microemulsion of alkyl polyglucoside
The middle phase microemulsions of alkyl polyglucosides (APG) C8G1.46, C10G1.46, C12G1.46, C8/10G1.31 and C12/14G1.43 have been studied with the alcohol concentration scanning phase diagram. The results show that in the quaternary system of APG/alcohol/alkane/water, the increase in the alcohol concentration causes a series of phase inversion Winsor I (2) → III(3) →II( 2 ). The order of the alco...
متن کاملA Convenient Ketene Generator
A simple apparatus for the preparation of ketene (CH,--C =O) from acetone vapor is described by Ott, Schr6ter, and Packendofff (1). A more rigid and convenient apparatus has been designed and used by the writer (Fig. 1). Pyrex glass used in both the filamentsupport and bulb reduces the possibility of cracking or breaking. The removable filament-support makes it possible to replace the filament ...
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ژورنال
عنوان ژورنال: Journal of Japan Oil Chemists' Society
سال: 1961
ISSN: 1884-2003
DOI: 10.5650/jos1956.10.282