DE1745194A1 - Herstellung von Polyamicsaeuren - Google Patents

Herstellung von Polyamicsaeuren

Info

Publication number
DE1745194A1
DE1745194A1 DE19671745194 DE1745194A DE1745194A1 DE 1745194 A1 DE1745194 A1 DE 1745194A1 DE 19671745194 DE19671745194 DE 19671745194 DE 1745194 A DE1745194 A DE 1745194A DE 1745194 A1 DE1745194 A1 DE 1745194A1
Authority
DE
Germany
Prior art keywords
manufacture
polyamic acids
solution
hours
solvent
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
DE19671745194
Other languages
English (en)
Inventor
Vaughan Mervyn Francis
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
Priority claimed from GB1324467A external-priority patent/GB1207485A/en
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of DE1745194A1 publication Critical patent/DE1745194A1/de
Pending 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
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1003—Preparatory processes
    • C08G73/1007—Preparatory processes from tetracarboxylic acids or derivatives and diamines
    • C08G73/1028—Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous
    • C08G73/1032—Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous characterised by the solvent(s) used
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/74—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polyamides (AREA)

Description

  •
    eungenitteln höhere Molekulargewichte geben als andere, so das ihre Benutzung deshalb von größerem Interesse ist.
    (cx3o og2cH2)2o.
    $u betrachten. 1. A usfiihruorm
    S ezifieche Visknsitäten
    Viekosimeter: Ubbelohde mit hängender Anordnung
    Temperatur: 300C
    Lösungsmittel: Dimethylformamid (DM?) oder
    Dimothylacetamid
    Konzentration: 0,4 96 Gowicht%Volumon (d.h. 20 mg Poly-
    arerieat/5 ml DMF t
    Berechnung der epezi- Spezifische Vipkosität = 1n relative =: ek.
    fiƒohen Viakositäten: a
    wobei die relative Viskosität das Ver-
    hältnis der Viahoeität der Lösung $u der
    Viskosität des Lösungsmittels und 0 die
    Konzentration des gelösten in der Lösung,
    auegedrifckt in Gramm pro 100 ml Lösung,
    ist.
    Beispiel 8 Ein Teil der ir. Beispiel 7 beschriebenen Lösung wird auf einen Peatotoffgehalt von-1.875 % (Gewicht/Vol.umen) verdünnt und auf Polypropylen unter Vorwendung eines Abatreifmeaaere zeit einer Öffnung von 0,115 cm aufgetragen. Der Pilm wird wie in Beispiel i' . getrocknet und ausgehärtet durch Erwärmen in f2 bei folgenden Temperaturen: bis zu 100°d in 7 Stunden bei 100°C für 1 Stunde. Man läßt ihn 1E Stunden kühlen und erwärmt ihn dant in f Stunden auf 300°.
  • Der erhaltene film ist keäftig, flexibel und transparent. Beispiel 9
    geben:

Claims (1)

  1.
DE19671745194 1966-11-04 1967-11-03 Herstellung von Polyamicsaeuren Pending DE1745194A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1324467A GB1207485A (en) 1966-11-04 1966-11-04 Production of polyamic acids
GB4960866 1966-11-04

Publications (1)

Publication Number Publication Date
DE1745194A1 true DE1745194A1 (de) 1971-11-11

Family

ID=26249646

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671745194 Pending DE1745194A1 (de) 1966-11-04 1967-11-03 Herstellung von Polyamicsaeuren

Country Status (3)

Country Link
BE (1) BE706049A (de)
DE (1) DE1745194A1 (de)
NL (1) NL6714977A (de)

Also Published As

Publication number Publication date
BE706049A (de) 1968-05-03
NL6714977A (de) 1968-05-06

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