GB1092645A - Process for the preparation of sul phonic acids of aromatic polymers - Google Patents

Process for the preparation of sul phonic acids of aromatic polymers

Info

Publication number
GB1092645A
GB1092645A GB2124165A GB2124165A GB1092645A GB 1092645 A GB1092645 A GB 1092645A GB 2124165 A GB2124165 A GB 2124165A GB 2124165 A GB2124165 A GB 2124165A GB 1092645 A GB1092645 A GB 1092645A
Authority
GB
United Kingdom
Prior art keywords
carbon tetrachloride
sulphonic acid
polystyrene
solution
water
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.)
Expired
Application number
GB2124165A
Inventor
Charles Laurence Arcus
Terence John Howard
Donald Stephen South
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB2124165A priority Critical patent/GB1092645A/en
Publication of GB1092645A publication Critical patent/GB1092645A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/34—Introducing sulfur atoms or sulfur-containing groups
    • C08F8/36—Sulfonation; Sulfation

Abstract

Sulphonic acids of aromatic polymers are prepared by mixing together a solution of sulphur trioxide in sulpholane (tetrahydrothiophen-1,1-dioxide) and a solution of an aromatic polymer, e.g. polystyrene, in carbon tetrachloride. The above two solutions may be added to additional carbon tetrachloride or to a mixture of carbon tetrachloride with sulpholane. Water may be added to the mixed solutions so as to separate them into two layers, the carbon tetrachloride layer being run off, the aqueous layer extracted with benzene and then freed from sulphonic acid by passage down a column of ion exchange resin of the quaternary ammonium type in hydroxyl form and the polystyrene sulphonic acid may be recovered from the aqueous solution by evaporation in a rotary film evaporator. Alternatively, after addition of water and separation of the mixed solutions into two layers, the aqueous layer may be separated, dialysed against distilled water and freezedried to yield the polystyrene sulphonic acid.
GB2124165A 1965-05-19 1965-05-19 Process for the preparation of sul phonic acids of aromatic polymers Expired GB1092645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2124165A GB1092645A (en) 1965-05-19 1965-05-19 Process for the preparation of sul phonic acids of aromatic polymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2124165A GB1092645A (en) 1965-05-19 1965-05-19 Process for the preparation of sul phonic acids of aromatic polymers

Publications (1)

Publication Number Publication Date
GB1092645A true GB1092645A (en) 1967-11-29

Family

ID=10159588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2124165A Expired GB1092645A (en) 1965-05-19 1965-05-19 Process for the preparation of sul phonic acids of aromatic polymers

Country Status (1)

Country Link
GB (1) GB1092645A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4144227A (en) * 1975-03-28 1979-03-13 Oronzio De Nora Impianti Elettrochimici S.P.A. Novel copolymers and diaphragms made therefrom
EP1780233A1 (en) * 2000-06-26 2007-05-02 Agfa-Gevaert Redispersible latex comprising a polythiophene

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4144227A (en) * 1975-03-28 1979-03-13 Oronzio De Nora Impianti Elettrochimici S.P.A. Novel copolymers and diaphragms made therefrom
EP1780233A1 (en) * 2000-06-26 2007-05-02 Agfa-Gevaert Redispersible latex comprising a polythiophene
EP1801143A1 (en) * 2000-06-26 2007-06-27 Agfa-Gevaert Redispersible latex comprising a polythiophene
EP1309646B1 (en) * 2000-06-26 2009-10-07 Agfa-Gevaert Redispersible latex comprising a polythiophene

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