RADICAL POLYMERIZATION INITIATOR, MULTI-BRANCHED POLYMER, VARNISH, ADHESIVE AGENT, COATING MATERIAL, SEALING MATERIAL, AND ELECTRONIC DEVICE

• Main Authors: NUNOSHIGE JUN, KAJIHARA YURI, MURAKI TAKAHITO
• Format: Patent
• Language: English; French; Japanese
• Published: 02.07.2015
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

The purpose of the present invention is to synthesize a multi-branched polymer having uniform molecular chain lengths and having no defect in branches without requiring purification. A radical polymerization initiator represented by the formula shown below (formula 1), said radical polymerization initiator being characterized in that n is a natural number of 3 or greater, Y represents a polyfunctional unsaturated compound, R represents a hydrocarbon group, X1 in the B-X1 (boron-X1) bond represents an alkoxy group or a phenyl group, and X2 in the B-X2 (boron-X2) bond represents an alkoxy group or a phenyl group. L'objet de la présente invention est de synthétiser un polymère multi-ramifié ayant des longueurs de chaînes moléculaires uniformes et ne comportant aucun défaut dans les ramifications sans nécessiter de purification. L'amorceur de polymérisation radicalaire ci-décrit est représenté par la formule exposée ci-dessous (formule 1), ledit amorceur de polymérisation radicalaire étant caractérisé en ce que n est un nombre naturel de 3 ou plus, Y représente un composé insaturé polyfonctionnel, R représente un groupe hydrocarbure, X1 dans la liaison B-X1 (bore-X1) représente un groupe alcoxy ou un groupe phényle, et X2 dans la liaison B-X2 (bore-X2) représente un groupe alcoxy ou un groupe phényle. 　精製をせずに、均一に分子鎖長が揃った枝欠損の無い多分岐ポリマーを合成する。　下記（式１）に表わされるラジカル重合開始剤において、ｎが３以上の自然数であり、Ｙが多官能不飽和化合物であり、Ｒが炭化水素基であり、Ｂ-Ｘ1（ホウ素-Ｘ1）結合のＸ1がアルコキシ基またはフェニル基であり、Ｂ-Ｘ2（ホウ素-Ｘ2）結合のＸ2がアルコキシ基またはフェニル基であることを特徴とするラジカル重合開始剤。