Übersetzung für "Compound character" in Deutsch

The compound was character-ised by nuclear magnetic resonance spectroscopy.

To stabilize the light-sensitive layer, it is advantageous to add a compound of acidic character to the layer.

The water-soluble, colourless, organic compound is a compound having "dye character", i.e. the behaviour of this compound under dyeing conditions conforms to the behaviour of a substantive dye, i.e. the compound has a certain affinity for cellulose.

When these polymeric compounds or magnetic particles which are functionalized on the surface with these polymeric compounds are heated, a change from the hydrophilic character of the polymeric compound to hydrophobic character, or conversely a change from hydrophobic character to hydrophilic character, occurs at the LCST.

If the hydrophobicized material and the switchably functionalized magnetic particles are brought together at a temperature at which the polymeric compound has hydrophobic character, formation of an agglomerate of functionalized magnetic particle and hydrophobicized material occurs.

Step (E) of the process of the invention comprises dissociation of the agglomerate separated off in step (D) by setting a temperature at which the polymeric compound has hydrophilic character in order to obtain the at least one first material.

In the preferred case, where the polymeric compound has hydrophilic character below the LCST, step (E) of the process of the invention is carried out at a temperature which is above the melting point of the suspension medium used and below the LCST of the polymeric compound.

When the polymeric compound has hydrophilic character above the LCST, step (E) is carried out at a temperature which is greater than the LCST of the polymeric compound and lower than the boiling point of the suspension medium used.

The compound character of the Comintern, the failure of the European revolution, the fascist offensive and the triumph of Stalinism in the USSR did not allow the western communist movement to take up and develop the Leninist experience, neither theoretically nor in practice.

At the temperature prevailing in step (E) of the process of the invention, the polymeric compound has hydrophilic character, i.e. no hydrophobic interactions can take place between the polymeric compound on the surface of the at least one magnetic particle and the hydrophobicized first material, so that the agglomerates are dissociated.

Above the LCST, the polymeric compound has hydrophobic character since the polymer chain is, for example, no longer surrounded by a hydration shell.

Depending on the polymeric compound, the reverse case, namely that the polymeric compound has hydrophobic character below the LCST and has hydrophilic character above the LCST, is also possible.

When the polymeric compound has hydrophobic character below the LCST, step (B) of the process of the invention is carried out at a temperature which is above the melting point of the suspension medium used and below the LCST of the polymeric compound.

When the polymeric compound has hydrophobic character below the LCST, step (D) of the process of the invention is carried out at a temperature which is above the melting point of the suspension medium used and below the LCST of the polymeric compound.

Step (B) of the process of the invention comprises contacting of the adduct from step (A) with at least one magnetic particle which is functionalized on the surface with at least one polymeric compound having a transition temperature LCST (lower critical solution temperature) at a temperature at which the polymeric compound has hydrophobic character so that the adduct from step (A) and the at least one functionalized magnetic particle agglomerate.

Below this LCST, the polymeric compound has hydrophilic character since the polymer chain has, for example, a hydration shell as a result of attachment of water molecules.

When the polymeric compound has hydrophobic character below the LCST, step (C) of the process of the invention is carried out at a temperature which is above the melting point of the suspension medium used and below the LCST of the polymeric compound.

These polymeric compounds have hydrophilic character below the LCST and hydrophobic character above the LCST.

Resulting salt-forming compounds of the formula I can be converted into salts in a manner known per se; for example compounds with hydroxy as radical A can be converted with corresponding bases, such as, for example, alkali metal hydroxides, into salts with bases, or compounds of basic character can be converted into their acid addition salts.

Also high-molecular compounds having plastics character, as are described for example in the "Kunststoff-Taschenbuch", Carl-Hanser Verlag, Munich (20th Edition 1977) can be used as granulating auxiliaries.

Heterocyclic compounds having aromatic character, such as pyridine, quinoline, their various alkyl and dialkyl, preferably methyl or dimethyl derivatives, imidazole, N-vinylimidazole, benzothiazole, 2-amino-6-ethoxybenzothiazole, and also phosphabenzoles.

Suitable acidic heterogeneous catalysts are metal compounds having the character of a Lewis acid or Bronsted acid, eg aluminum oxide, silicon oxide, titanium dioxide, zirconium dioxide, and also phosphates, eg aluminum phosphate, or silicates, eg amorphous or crystalline aluminosilicates.

For example, the following are suitable cationic surfactants: the chlorides or bromides of alkyidimethylbenzyl ammonium salts, alkyltrimethyl ammonium salts, especially cetyltrimethyl ammonium chloride or cetyltrimethyl ammonium bromide, tetradecyltrimethyl ammonium chloride or tetradecyltrimethyl ammonium bromide, alkyldimethylhydroxyethyl ammonium chloride or alkyldimethylhydroxyethyl bromide, dialkyldimethyl ammonium chloride or dialkyldimethyl ammonium bromide, alkylpyridinium salts, especially laurylpyridinium chloride or cetylpyridinium chloride, alkylamidoethyl trimethyl ammonium ether sulfate and compounds with cationic character, such as amine oxides, especially alkylmethylamine oxide or alkylaminoethyldimethylamino oxide.

For the purposes of the present invention, cationic surfactants may also preferably be chosen from the group of quaternary ammonium compounds, in particular benzyltrialkylammonium chlorides or bromides, such as, for example, benzyldimethylstearylammonium chloride, and also alkyltrialkylammonium salts, for example cetyltrimethylammonium chloride or bromide, alkyldimethylhydroxyethylammonium chlorides or bromides, dialkyldimethylammonium chlorides or bromides, alkylamidoethyltrimethylammonium ether sulfates, alkylpyridinium salts, for example lauryl-or cetylpyridinium chloride, imidazoline derivatives and compounds with cationic character, such as amine oxides, for example alkyldimethylamine oxide or alkylaminoethyidimethylamine oxide.

The cationic surfactants used according to the invention can also preferably be chosen from the group of quaternary ammonium compounds, in particular benzyltrialkylammonium chlorides or bromides, such as, for example, benzyldimethylstearylammonium chloride, and also alkyltrialkylammonium salts, for example cetyltrimethylammonium chloride or bromide, alkyldimethylhydroxyethylammonium chlorides or bromides, dialkyldimethylammonium chlorides or bromides, alkylamidoethyltrimethylammonium ether sulphates, alkylpyridinium salts, for example lauryl- or cetylpyridinium chloride, imidazoline derivatives and compounds having cationic character, such as amine oxides, for example alkyldimethylamine oxides or alkylaminoethyldimethylamine oxides.

Suitable catalysts are, for example, organic metallic compounds such as salts of carboxylic acid, alcoholates and phenolates, complex compounds of chelate character, basic catalysts such as alkali hydroxides, amines, alkali silanolates, quaternary ammonium hydroxides and acidic catalysts.

For example, suitable cationic surfactants include the chlorides or bromides of alkyldimethylbenzylammonium salts, alkyltrimethylammonium salts, e.g. cetyltrimethylammonium chloride or bromide, alkyldimethylhydroxyethylammonium chloride, alkyldimethylhydroxyethylammonium chloride or bromide, dialkyldimethylammonium chloride or bromide, alkylpyridinium salts, such as lauryl- or cetylpyridinium chloride, alkylamidoethyltrimethylammonium ether sulfate and compounds with cationic character, such as amine oxides, for example alkylmethylamine oxides or alkylaminoethyldimethylamine oxides.

For the purposes of the present invention, cationic surfactants may also preferably be chosen from the group of quatemary ammonium compounds, in particular benzyltrialkyl-ammonium chlorides or bromides, such as, for example, benzyldimethylstearylammonium chloride, and also alkyltrialkylammonium salts, for example cetyltrimethylammonium chloride or bromide, alkyldimethylhydroxyethylammonium chlorides or bromides, dialkyldimethyl-ammonium chlorides or bromides, alkylamidoethyltrimethylammonium ether sulfates, alkyl-pyridinium salts, for example lauryl- or cetylpyridinium chloride, imidazoline derivatives and compounds with cationic character, such as amine oxides, for example alkyldimethylamine oxide or alkylaminoethyidimethylamine oxide.

Depending on the pH of the dyebath, such compounds have anionic character (neutral to basic liquor) or cationic (acid liquor) character.

This class of dyes is designated in the Colour Index, 3rd edition, 1971 and supplements 1975 as "C.I. Reactive Dyes", and embraces chemical compounds of dye character which are capable of entering a covalent bond with OH- and/or NH-containing fibers.

This class of dyes is referred to in the Colour Index, 3rd edition 1971 and supplements 1975, as "C.I. Reactive Dyes", and comprises chemical compounds of dye character which are capable of entering a covalent bond with OH- and/or NH-containing fibers.

Accordingly, it is an object of this invention to provide liquid crystalline compounds of polar character in which even strongly polar doping agents and/or dichroitic dyes are soluble to a sufficient extent to enable color switches based on the guest-host effect to be produced.

These polymeric compounds have hydrophobic character above the LCST and hydrophilic character below the LCST, or vice versa.