JPS5573714A - Preparation of water-soluble copolymer - Google Patents

Preparation of water-soluble copolymer

Info

Publication number
JPS5573714A
JPS5573714A JP14649078A JP14649078A JPS5573714A JP S5573714 A JPS5573714 A JP S5573714A JP 14649078 A JP14649078 A JP 14649078A JP 14649078 A JP14649078 A JP 14649078A JP S5573714 A JPS5573714 A JP S5573714A
Authority
JP
Japan
Prior art keywords
water
acrylamide
preparation
soluble copolymer
azobis
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
JP14649078A
Other languages
Japanese (ja)
Inventor
Takahiro Kobashi
Nobuaki Hayashi
Motoo Akagi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14649078A priority Critical patent/JPS5573714A/en
Publication of JPS5573714A publication Critical patent/JPS5573714A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To obtain the title copolymer having the desired molecular weight (MW), MW distribution and structure, with a high polymerization rate, by polymerizing acrylamide with diacetone acrylamide in the presence of a specific azo compound as an initiator.
CONSTITUTION: (A) Acrylamide is copolymerized with (B) diacetone acrylamide in the presence of 0.05W0.7wt.% based on (A) of (C) 1 water-soluble azo compound, e.g. 2,2'-azobis (2-amidino propane) hydrochloride or 2,2'-azobis(N,N'- dimethyleneisobutylamidine) hydrochloride, as an initiator, at a polymerization initiation temperature of 35W65°C. The monomer concentration is preferably 5W15%.
COPYRIGHT: (C)1980,JPO&Japio
JP14649078A 1978-11-29 1978-11-29 Preparation of water-soluble copolymer Pending JPS5573714A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14649078A JPS5573714A (en) 1978-11-29 1978-11-29 Preparation of water-soluble copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14649078A JPS5573714A (en) 1978-11-29 1978-11-29 Preparation of water-soluble copolymer

Publications (1)

Publication Number Publication Date
JPS5573714A true JPS5573714A (en) 1980-06-03

Family

ID=15408798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14649078A Pending JPS5573714A (en) 1978-11-29 1978-11-29 Preparation of water-soluble copolymer

Country Status (1)

Country Link
JP (1) JPS5573714A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5287492A (en) * 1976-01-16 1977-07-21 Toagosei Chem Ind Co Ltd Preparation of acrylamide high polymers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5287492A (en) * 1976-01-16 1977-07-21 Toagosei Chem Ind Co Ltd Preparation of acrylamide high polymers

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