Title:
METHOD FOR PRODUCING SULFONIC ACID GROUP-CONTAINING POLYMER
Document Type and Number:
Japanese Patent JP2007138065
Kind Code:
A
Abstract:
To provide a method for simply and efficiently producing a sulfonic acid group-containing polymer, with which a sulfonic acid ester group is continuously converted into a sulfonic acid group by directly feeding a deesterifying agent to a polymerization reaction solution without requiring complicated procedures such as polymer purification, metal removal by filtration, etc., in a solution containing the polymer having a sulfonic acid ester group.
The method for producing a sulfonic acid group-containing polymer comprises deesterifying a polymer containing a sulfonic acid ester group represented by formula (A) (R is an alkyl group) by using a deesterifying agent composed of an amine salt or an ammonium salt.
Inventors:
TAKASUGI SHINGO
YAMAKAWA YOSHITAKA
OTSUKI TOSHITAKA
GOTO KOHEI
YAMAKAWA YOSHITAKA
OTSUKI TOSHITAKA
GOTO KOHEI
Application Number:
JP2005335639A
Publication Date:
June 07, 2007
Filing Date:
November 21, 2005
Export Citation:
Assignee:
JSR CORP
International Classes:
C08G85/00; C07B61/00; C07C303/02; C07C309/44; C08G61/00; H01M8/02
Attorney, Agent or Firm:
Shunichiro Suzuki
Koji Makimura
Chihata Takahata
Toru Suzuki
Koji Makimura
Chihata Takahata
Toru Suzuki