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1. (WO2018180547) MOLECULAR-WEIGHT CONTROLLING AGENT FOR RADICAL POLYMERIZATION, METHOD FOR PRODUCING POLYMER USING SAME, AND POLYMER

Pub. No.:    WO/2018/180547    International Application No.:    PCT/JP2018/010242
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 16 00:59:59 CET 2018
IPC: C08F 2/38
C08F 20/06
Applicants: SDP GLOBAL CO., LTD.
SDPグローバル株式会社
GODO SHIGEN CO., LTD.
株式会社合同資源
Inventors: MIYAJIMA Toru
宮島 徹
MATSUBARA Yusuke
松原 佑介
MIYAMOTO Michihiko
宮本 充彦
KOMATSU Hiroto
小松 弘人
YAMAGUCHI Yu
山口 優
JITSUKAWA Takuya
實川 拓也
Title: MOLECULAR-WEIGHT CONTROLLING AGENT FOR RADICAL POLYMERIZATION, METHOD FOR PRODUCING POLYMER USING SAME, AND POLYMER
Abstract:
The purpose of the present invention is to provide: a molecular-weight controlling agent for radical polymerization which enables controlled radical polymerization of a water-soluble monomer in an aqueous medium; a method for producing a polymer of a water-soluble vinyl monomer using the same; and a water-soluble vinyl monomer polymer. The present invention provides a molecular-weight controlling agent for radical polymerization characterized in that the agent comprises, as its active ingredient, an iodine compound represented by formula (1) and in that the solubility of the active ingredient in water is 0.5 weight% or more at 20°C. (1) In the formula, R1 is -COOX, -CONR4R5, an aromatic group, or a cyano group, X is a hydrogen atom, an aliphatic group, an alkali metal, an alkaline earth metal, an organic ammonium, or an ammonium, and R2, R3, R4, and R5 are each independently a hydrogen atom, an aromatic group, or an aliphatic group.