Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Dodecylamine, organic base

Third, reaction products of acid azo dyes acid 1 1 metal-complex azo dyes, or 1 2 metal complex azo dyes without acid groups with organic bases or cationic dyes. Cyclohexylamine, dodecylamine, and sulfonium or phosphonium compounds serve as bases, and derivatives of the xanthene range (rhodamines) are mainly used as cationic dyes. Example C.I. Solvent Red 109 [53802-03-2] is composed of Solvent Yellow 19, 13900 1 [10343-55-2] (3) and Solvent Red 49, 45170 1 [81-88-9] (4). These dyes are saltlike compounds of a metal-complex azo dye acid and a base. [Pg.296]

The high acidity of the unique sulfonic acid function of Nafion can also be utilized by tethering perfluoroalkanesulfonic acid groups to the surface of various silicas. Two approaches have been described to prepare such hybrid organic-inorganic materials. The grafted materials 3 have been prepared by reacting preformed silica materials (MCM-41, SBA-15) with sultone 2 [Eq. (2.31)].165 Co-condensation of tetraethoxy-silane with 4 in the presence of dodecylamine template, in turn, furnished the HMS-based material 5 [Eq. (2.32)].166,167... [Pg.67]

Polymer nanocomposites are one of the highly discussed research topics in recent time. Yehia et al. reported the preparation and the properties of different nanoclays based on sodium montmoriUonite (bentonite) and some organic amines of varying chain lengths (dodecylamine, hexadecylamine and octadecylamine) beside amine-terminated butadiene-acrylonitrile copolymer (ATBN) The nanocomposite clays were incorporated in natural and synthetic rubbers (NR, SBR and... [Pg.180]

In another work of the same authors, dodecylamine modified clay was applied for the modification of the UP-based gel coat system [12]. The best mechanical properties were observed for nanocomposite gel coat with 2wt% clay, including an increase in tensile and impact strength, respectively, by 21 and 33% compared to the conventional gel coat. Further increase in organically modified montmo-rillonite (OMMT) content leads to the decrease of the strength values. The nanocomposite gel coat system showed better water absorption resistance than the conventional UP gel coats. [Pg.253]


See other pages where Dodecylamine, organic base is mentioned: [Pg.163]    [Pg.578]    [Pg.113]   


SEARCH



Organic bases

© 2024 chempedia.info