In one aspect, the present disclosure provides methods of preparing a secondary amine. In some embodiments, the secondary amine comprises two different groups or two identical groups. Also provided herein are compositions for use in the preparation of the secondary amine.

The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.

The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.

A raw material for forming a thin film, comprising a compound represented by General Formula (1) below.

##STR00001##

(in the formula, R.sup.1 represents a linear or branched alkyl group having 1 to 5 carbon atoms, R.sup.2 represents hydrogen or a linear or branched alkyl group having 1 to 5 carbon atoms, R.sup.3 and R.sup.4 each independently represent a linear or branched alkyl group having 1 to 5 carbon atoms, A represents an alkanediyl group having 1 to 4 carbon atoms and M represents copper, iron, nickel, cobalt or manganese.)

A raw material for forming a thin film, comprising a compound represented by General Formula (1) below.

##STR00001##

(in the formula, R.sup.1 represents a linear or branched alkyl group having 1 to 5 carbon atoms, R.sup.2 represents hydrogen or a linear or branched alkyl group having 1 to 5 carbon atoms, R.sup.3 and R.sup.4 each independently represent a linear or branched alkyl group having 1 to 5 carbon atoms, A represents an alkanediyl group having 1 to 4 carbon atoms and M represents copper, iron, nickel, cobalt or manganese.)

The compounds with the general formula I are disclosed ##STR00001##
where n.sub.1 is the number of carbon atoms connected to nitrogen atom by a double bond and can take on values of 25 to 41, and where n.sub.2 is the number of —CH.sub.2— groups and can take on values of 15 to 23, as well as their biologically acceptable salts and solvates.

The compounds with the general formula I are disclosed ##STR00001##
where n.sub.1 is the number of carbon atoms connected to nitrogen atom by a double bond and can take on values of 25 to 41, and where n.sub.2 is the number of —CH.sub.2— groups and can take on values of 15 to 23, as well as their biologically acceptable salts and solvates.

Imine, obtainable by reaction of (i) an amino-functionalised polyoxyalkylene, the polyoxyalkylene chains of which are a copolymer of oxyethylene and oxypropylene units, those polyoxyalkylene chains carrying primary amino groups (preferably two terminal primary amino groups per molecule), and (ii) a ketone and/or aldehyde having a hydrogen atom at the carbon atom in the alpha-position to the carbonyl carbon; and various subjects of the invention based thereon, especially in coating systems or adhesive systems.

Imine, obtainable by reaction of (i) an amino-functionalised polyoxyalkylene, the polyoxyalkylene chains of which are a copolymer of oxyethylene and oxypropylene units, those polyoxyalkylene chains carrying primary amino groups (preferably two terminal primary amino groups per molecule), and (ii) a ketone and/or aldehyde having a hydrogen atom at the carbon atom in the alpha-position to the carbonyl carbon; and various subjects of the invention based thereon, especially in coating systems or adhesive systems.

Imine, obtainable by reaction of (i) an amino-functionalised polyoxyalkylene, the polyoxyalkylene chains of which are a copolymer of oxyethylene and oxypropylene units, those polyoxyalkylene chains carrying primary amino groups (preferably two terminal primary amino groups per molecule), and (ii) a ketone and/or aldehyde having a hydrogen atom at the carbon atom in the alpha-position to the carbonyl carbon; and various subjects of the invention based thereon, especially in coating systems or adhesive systems.