GB798004A - Polybenzimidazoles and method of preparing the same - Google Patents

Polybenzimidazoles and method of preparing the same

Info

Publication number
GB798004A
GB798004A GB32329/56A GB3232956A GB798004A GB 798004 A GB798004 A GB 798004A GB 32329/56 A GB32329/56 A GB 32329/56A GB 3232956 A GB3232956 A GB 3232956A GB 798004 A GB798004 A GB 798004A
Authority
GB
United Kingdom
Prior art keywords
bis
diaminophenyl
polybenzimidazoles
propane
acid
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
GB32329/56A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB798004A publication Critical patent/GB798004A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/18—Polybenzimidazoles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

Polybenzimidazoles are made by condensing a bis-diaminophenyl compound with an equimolecular quantity of a dicarboxylic acid at a temperature of from 100 DEG to 350 DEG C. in the absence of oxygen. Preferred bis-diaminophenyl compounds are of the general formula <FORM:0798004/IV (a)/1> where R is a carbon to carbon bond or a divalent hydrocarbon radical, e.g. 1,2-bis(3,4-diaminophenyl) ethane and 2,2-bis-(3,4-diaminophenyl) propane. Preferred dicarboxylic acids are those of the formula HOOC-R1-COOH, where R1 is a chain of methylene groups, e.g. adipic and sebacic acids. The examples describe the preparation of polybenzimidazoles form (1) sebacic acid and 3,31-diaminobenzidine, (2) sebacic acid and 1,2-bis-(3,4-diaminophenyl) ethane, (3) adipic acid and 2,2-bis-(3,4-diaminophenyl) propane and (4) sebacic acid and 2,2-bis-(3,4-diaminophenyl) propane. The polybenzimidazoles may be modified by reaction with diamines. The products may be used as fibres, coatings and mouldings. Specifications 461,236 and 461,237, [both in Group IV], are referred to.
GB32329/56A 1955-10-28 1956-10-23 Polybenzimidazoles and method of preparing the same Expired GB798004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US798004XA 1955-10-28 1955-10-28

Publications (1)

Publication Number Publication Date
GB798004A true GB798004A (en) 1958-07-09

Family

ID=22152901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32329/56A Expired GB798004A (en) 1955-10-28 1956-10-23 Polybenzimidazoles and method of preparing the same

Country Status (1)

Country Link
GB (1) GB798004A (en)

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