METHOD FOR PRODUCING POLYMER HAVING STRUCTURAL UNIT DERIVED FROM α-METHYL LACTONE

METHOD FOR PRODUCING POLYMER HAVING STRUCTURAL UNIT DERIVED FROM α-METHYL LACTONE

To provide a method for producing a polymer having a structural unit derived from α-methylene lactone excellent in productivity.SOLUTION: A method for producing a polymer having a structural unit derived from α-methylene lactone includes: a suspension liquid producing step of stirring a mixture incl...

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Hauptverfasser: IMOTO SHINYA, HORAI KENSUKE
Format: Patent
Sprache:eng ; jpn
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CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator IMOTO SHINYA
HORAI KENSUKE
description To provide a method for producing a polymer having a structural unit derived from α-methylene lactone excellent in productivity.SOLUTION: A method for producing a polymer having a structural unit derived from α-methylene lactone includes: a suspension liquid producing step of stirring a mixture including α-methylene lactone monomer, a dispersion medium, and a first surfactant to obtain a suspension liquid; and a polymerization step of heating the suspension liquid to obtain a polymer. A second surfactant is added to the suspension liquid between the suspension liquid producing step and the polymerization step.SELECTED DRAWING: None 【課題】生産性に優れた、α－メチレンラクトン由来の構造単位を有する重合体の製造方法を提供すること。【解決手段】α－メチレンラクトン由来の構造単位を有する重合体の製造方法であって、α－メチレンラクトン単量体と、分散媒と、第一の界面活性剤と、を含む混合物を撹拌して懸濁液を得る懸濁液製造工程と、懸濁液を加熱し、重合体を得る重合工程と、を有し、懸濁液製造工程と重合工程との間に、第二の界面活性剤を懸濁液に添加する、重合体の製造方法。【選択図】なし
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title METHOD FOR PRODUCING POLYMER HAVING STRUCTURAL UNIT DERIVED FROM α-METHYL LACTONE
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