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See detailIn-situ polymerization of monoethylenically unsaturated monomers with secondary amines
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

PROBLEM TO BE SOLVED: To provide a novel process for producing a homopolymer, a random copolymer, or a block copolymer having a controlled molecular weight, a narrow molecular weight distribution, a high ... [more ▼]

PROBLEM TO BE SOLVED: To provide a novel process for producing a homopolymer, a random copolymer, or a block copolymer having a controlled molecular weight, a narrow molecular weight distribution, a high monomer conversion ratio, and a controlled structure. ; SOLUTION: The polymer having a controlled molecular weight, a narrow polydispersibility, a high monomer conversion ratio, and a controlled structure is produced by polymerizing a vinyl monomer during the formation of a mixture of a hindered secondary amine and an oxidizing agent at a relatively low temperature in a short reaction time. It is unnecessary to add a free radical initiator before polymerization. Further, it is unnecessary to preliminarily react the secondary amine with the oxidizing agent before adding the monomer. [less ▲]

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See detailPolymerization method of polymer compound by in situ polymerization of monoethylenically unsaturated monomer and secondary amine
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

Provided is a method for preparing a polymer compound selected from the group consisting of an oligomer, a cooligomer, a polymer and a copolymer without using an additional free radical initiator ... [more ▼]

Provided is a method for preparing a polymer compound selected from the group consisting of an oligomer, a cooligomer, a polymer and a copolymer without using an additional free radical initiator. CONSTITUTION: The method comprises the steps of mixing at least one monoethylenically unsaturated monomer represented by HR1C=CR2R3, at least one oxidant and at least one secondary amine represented by the formula 2; and heating the mixture at a polymerization temperature of 0-220 deg.C, wherein R1, R2 and R3 are independently H, a C1-C20 alkyl group, a C1-C20 cycloalkyl group, a C6-C24 aryl group, a halogen atom, a cyano group, a C1-C20 alkyl ester group, a C1-C20 cycloalkyl ester group, a C1-C20 alkylamide group, a C1-C20 cycloalkylamide group, a C6-C24 aryl ester group or a C6-C24 arylamide group; R4 and R5 are independently a C1-C18 alkyl group, a C2-C18 alkenyl group, a C2-C18 alkynyl group, a C3-C12 cycloalkyl group, a C3-C12 hetero cycloalkyl group, a C6-C24 aryl group or a C4-C12 alkanol group; and R4 and R5 can form a C2-C13 hetero cycloalkyl residue containing O, S or N together with a nitrogen atom connecting them, or a polycyclic ring-based or polycyclic heterocycloaliphatic ring-based residue containing O, S or N, and in the each case the carbon atom of the radical next to the nitrogen atom is substituted with two or three additional organic substituents. [less ▲]

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See detailIn-situ polymerization of monoethylenically unsaturated monomers with secondary amines
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

A process for the preparation of any of well-defined homopolymers, random and block copolymers is disclosed. The process that entails forming a mixture of monomers, a hindered secondary amine and an ... [more ▼]

A process for the preparation of any of well-defined homopolymers, random and block copolymers is disclosed. The process that entails forming a mixture of monomers, a hindered secondary amine and an oxidizing agent is characterized in the absence of any additional free-radical initiator. [less ▲]

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See detailIn situ polymerization with monoethenoid unsaturation monomer of secondary amine
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

The present invention relates to a new process for the preparation of well-defined homopolymers, random and block copolymers using a mixture of a hindered secondary amine and an oxidizing agent, without ... [more ▼]

The present invention relates to a new process for the preparation of well-defined homopolymers, random and block copolymers using a mixture of a hindered secondary amine and an oxidizing agent, without any additional free-radical initiator. [less ▲]

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See detailIn-situ polymerization of monoethylenically unsaturated monomers with secondary amines
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

A process for the preparation of any of well-defined homopolymers, random and block copolymers is disclosed. The process that entails forming a mixture of monomers, a hindered secondary amine and an ... [more ▼]

A process for the preparation of any of well-defined homopolymers, random and block copolymers is disclosed. The process that entails forming a mixture of monomers, a hindered secondary amine and an oxidizing agent is characterized in the absence of any additional free-radical initiator. [less ▲]

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See detailIn-situ polymerization of monoethylenically unsaturated monomers with secondary amines
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

The present invention relates to a new process for the preparation of well-defined homopolymers, random and block copolymers using a mixture of a hindered secondary amine and an oxidizing agent, without ... [more ▼]

The present invention relates to a new process for the preparation of well-defined homopolymers, random and block copolymers using a mixture of a hindered secondary amine and an oxidizing agent, without any additional free-radical initiator. [less ▲]

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See detailIn-situ polymerization of monoethylenically unsaturated monomers with secondary amines
Meyer, Rolf-Volker; Gross, Thomas; Detrembleur, Christophe ULg

Patent (2004)

The present invention relates to a new process for the preparation of well-defined homopolymers, random and block copolymers using a mixture of a hindered secondary amine and an oxidizing agent, without ... [more ▼]

The present invention relates to a new process for the preparation of well-defined homopolymers, random and block copolymers using a mixture of a hindered secondary amine and an oxidizing agent, without any additional free-radical initiator. [less ▲]

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See detailMethod for producing functionalized alkoxyamine initiator and use thereof
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

PROBLEM TO BE SOLVED: To provide a method for producing a functionalized alkoxyamine initiator and its use in radical polymerization process. ; SOLUTION: The invention provides a one-pot process for the ... [more ▼]

PROBLEM TO BE SOLVED: To provide a method for producing a functionalized alkoxyamine initiator and its use in radical polymerization process. ; SOLUTION: The invention provides a one-pot process for the production of a functionalized alkoxyamine of general formula (I) (for example, R<SP>1</SP>and R<SP>2</SP>are each H; R<SP>3</SP>is phenyl; and R<SP>4</SP>and R<SP>5</SP>together with nitrogen atom form an alicyclic 6-membered ring). The method includes (1) the formation of an aqueous phase and nitroxyl radical by reacting an oxidizing agent with a secondary amine having steric hindrance and (2) the removal of the aqueous phase and the addition of one or more vinyl monomers to the nitroxyl radical according to the method and system for the production of the radical. The invention further provides a monomer polymerization method using the functionalized alkoxyamine. [less ▲]

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See detailA process for the synthesis of alkoxyamines and their use in controlled radical polymerization
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

PROBLEM TO BE SOLVED: To provide a method for synthesizing an alkoxyamine, and to provide a method for using the same in controlled radical polymerization. ; SOLUTION: This method for synthesizing the ... [more ▼]

PROBLEM TO BE SOLVED: To provide a method for synthesizing an alkoxyamine, and to provide a method for using the same in controlled radical polymerization. ; SOLUTION: This method for synthesizing the alkoxyamine expressed by general formula (I) or (II) [preferably, general formula (I)] comprises a one-pot process, wherein the process includes (1) reacting an oxidizing agent (A) with a sterically hindered secondary amine of general formula (III) in a water-containing medium to form a reaction product and an aqueous phase, (2) removing the aqueous phase, and (3) adding a free radical initiator (B) to the reaction product under such a condition that decomposition of the initiator is promoted to generate free radicals. Further, a method for polymerizing a monomer, namely the method for using the alkoxyamine synthesized by the method with originality, is provided [less ▲]

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See detailPreparation of functionalized alkoxyamine initiator and its use
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

A one-pot process for the preparation of functional alkoxyamines of the general formula (I),is disclosed. The process entails (1) reacting an oxidizing agent with a sterically hindered secondary amine to ... [more ▼]

A one-pot process for the preparation of functional alkoxyamines of the general formula (I),is disclosed. The process entails (1) reacting an oxidizing agent with a sterically hindered secondary amine to produce an aqueous phase and a nitroxyl radical (2) removing the aqueous phase and adding to the nitroxyl radical one or more vinyl monomer(s) conforming to a formula and a system which produces free radicals. Also disclosed is a process of polymerizing monomers using the functional alkoxyamine. [less ▲]

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See detailOne-pot process for the preparation of functionalized alkoxyamines
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

The present invention relates to a new one-pot process for the preparation of functionalized alkoxyamine initiators of the formula (I) <CHEM> from amines of the formula (II) <CHEM> and to a process of ... [more ▼]

The present invention relates to a new one-pot process for the preparation of functionalized alkoxyamine initiators of the formula (I) <CHEM> from amines of the formula (II) <CHEM> and to a process of controlled radical polymerization using the functionalized alkoxyamine as initiators. In the above formulae, R<1>-R<5> have the meanings given in the description. [less ▲]

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See detailA new process for the synthesis of alkoxyamines active in controlled radical polymerization
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

The present invention relates to a new process for the preparation of alkoxyamine initiators and to a process of radical polymerization using the alkoxyamine initiators as intermediates.

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See detailProcess for the synthesis for alkoxy amines and their use in controlled radical polymerization
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered ... [more ▼]

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered secondary amine of the general formula (III), in a water-containing medium to form a reaction product and an aqueous phase, (2) removing of the aqueous phase, and (3) (adding to the reaction product a free-radical initiator (B) under conditions that promote the decomposition of the initiator to generate free radicals. Also disclosed is a process for polymerizing monomers, the process using the alkoxyamine prepared by the inventive process. [less ▲]

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See detailThe preparation of functionalized alkoxyamine initiator and its use
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2003)

A one-pot process for the preparation of functional alkoxyamines of the general formula (I), (See Formula I) is disclosed. The process entails (1) reacting an oxidizing agent with a sterically hindered ... [more ▼]

A one-pot process for the preparation of functional alkoxyamines of the general formula (I), (See Formula I) is disclosed. The process entails (1) reacting an oxidizing agent with a sterically hindered secondary amine to produce an aqueous phase and a nitroxyl radical (2) removing the aqueous phase and adding to the nitroxyl radical one or more vinyl monomer(s) conforming to a formula and a system which produces free radicals . Also disclosed is a process of polymerizing monomers using the function al alkoxyamine. [less ▲]

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See detailA process for the synthesis of alkoxyamines and their use in controlled radical polymerization
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2003)

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) (See formulas I and II) is disclosed. The process entails (1) reacting of an oxidizing agent (A ... [more ▼]

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) (See formulas I and II) is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered secondary amine of the general formula (III), (See formula III) in a water-containing medium to form a reaction product and an aqueous phase , (2) removing of the aqueous phase, and (3) adding to the reaction product a free-radical initiator (B) under conditions that promote the decomposition of the initiator to generate free radicals. Also disclosed is a process for polymerizing monomers, the process using the alkoxyamine prepared by the inventive process. [less ▲]

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See detailPreparation of functionalized alkoxyamine initiator and its use
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2003)

A one-pot process for the preparation of functional alkoxyamines of the general formula (I), is disclosed. The process entails (1) reacting an oxidizing agent with a sterically hindered secondary amine to ... [more ▼]

A one-pot process for the preparation of functional alkoxyamines of the general formula (I), is disclosed. The process entails (1) reacting an oxidizing agent with a sterically hindered secondary amine to produce an aqueous phase and a nitroxyl radical (2) removing the aqueous phase and adding to the nitroxyl radical one or more vinyl monomer(s) conforming to a formula and a system which produces free radicals. Also disclosed is a process of polymerizing monomers using the functional alkoxyamine. [less ▲]

Detailed reference viewed: 14 (1 ULg)