JPS57131209A - Production of water-soluble high-molecular weight polymer - Google Patents

Production of water-soluble high-molecular weight polymer

Info

Publication number
JPS57131209A
JPS57131209A JP1831481A JP1831481A JPS57131209A JP S57131209 A JPS57131209 A JP S57131209A JP 1831481 A JP1831481 A JP 1831481A JP 1831481 A JP1831481 A JP 1831481A JP S57131209 A JPS57131209 A JP S57131209A
Authority
JP
Japan
Prior art keywords
water
molecular weight
weight polymer
production
acrylamide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1831481A
Other languages
Japanese (ja)
Inventor
Shigenao Kawakami
Naomi Jinno
Shigenori Tajiri
Tatsumi Shibata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP1831481A priority Critical patent/JPS57131209A/en
Publication of JPS57131209A publication Critical patent/JPS57131209A/en
Pending legal-status Critical Current

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To obtain a highly water-soluble, high-molecular weight polymer by polymerizing (meth)acrylamide in an aqueous solution in the presence of ethylenediamine and a specified compound.
CONSTITUTION: (Meth)acrylamide, about 0.1W5wt% thiosalicylate or thiomalate and about 0.05W1wt% ethylenediamine are charged in an aqueous medium, and the mixture is polymerized at a temperature below about 70°C by a thermal or photopolymerization method. It is preferred that the concentration of (meth) acrylamide in the charged water is above about 10wt%, and the concentration of a polymerization initiator used in the thermal polymerization is in the range: about 0.01W0.5wt%.
COPYRIGHT: (C)1982,JPO&Japio
JP1831481A 1981-02-09 1981-02-09 Production of water-soluble high-molecular weight polymer Pending JPS57131209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1831481A JPS57131209A (en) 1981-02-09 1981-02-09 Production of water-soluble high-molecular weight polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1831481A JPS57131209A (en) 1981-02-09 1981-02-09 Production of water-soluble high-molecular weight polymer

Publications (1)

Publication Number Publication Date
JPS57131209A true JPS57131209A (en) 1982-08-14

Family

ID=11968143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1831481A Pending JPS57131209A (en) 1981-02-09 1981-02-09 Production of water-soluble high-molecular weight polymer

Country Status (1)

Country Link
JP (1) JPS57131209A (en)

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