BE493821A - - Google Patents

Info

Publication number
BE493821A
BE493821A BE493821DA BE493821A BE 493821 A BE493821 A BE 493821A BE 493821D A BE493821D A BE 493821DA BE 493821 A BE493821 A BE 493821A
Authority
BE
Belgium
Prior art keywords
solid polymer
vapor
ring
polymer characterized
rings
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE493821A publication Critical patent/BE493821A/fr

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
    • C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
BE493821D BE493821A (forum.php)

Publications (1)

Publication Number Publication Date
BE493821A true BE493821A (forum.php)

Family

ID=137732

Family Applications (1)

Application Number Title Priority Date Filing Date
BE493821D BE493821A (forum.php)

Country Status (1)

Country Link
BE (1) BE493821A (forum.php)

Similar Documents

Publication Publication Date Title
US3268599A (en) Process for the preparation of cyclo
Papadimitrakopoulos et al. The Role of Carbonyl Groups in the Photoluminescence of Poly (p-phenylenevinylene)
US3274267A (en) Cyclic alpha-perfluoro-di-p-xylylenes
EP0077718B1 (fr) Procédé de préparation de compositions de polyimides aromatiques présentant une solubilité élevée et leurs utilisations
CA2023124A1 (fr) Membrane de separation de gaz
EP0334778B1 (fr) Polyamide-imides aromatiques fonctionnalisés par des groupes alkenyloxy, un procédé pour leur préparation et leur emploi pour notamment préparer des polymères réticulés
FR3060000A1 (fr) Procede pour eviter le depot de polymeres dans un procede de purification d'acide (meth)acrylique.
CN1800170A (zh) 纯化二酸酐的方法
US3297591A (en) Process for the preparation of alpha-perfluoro-p-xylylene poluymers
BE493821A (forum.php)
Kubota et al. Positive Photoreactive Polyimides. II. Preparation and Characterization of Polyimide Precursors Containing α-(2-Nitrophenyl) ethyl Ester Side Chains
FR2621042A1 (fr) Compositions de polyimides gravables en milieu basique
KR102622216B1 (ko) 폴리이미드 전구체를 포함하는 극성 유기용매의 정제 방법
FR2745567A1 (fr) Phosgenation sous pression des acides pour la prodution des chlorures d'acides
EP0220080B1 (fr) Compositions d'oligomères de polyaryloxypyridine à terminaisons phtalonitriles, leur préparation, leur utilisation dans la fabrication de réseaux de polyaryloxypyridine copolyphtalocyanines, et les réseaux obtenus
US20060270878A1 (en) Process for the preparation of dimethylketene and then of polydimethylketene fro isobutyric anhydride
FR2691380A1 (fr) Composition catalytique à base de silice et son utilisation pour la polymérisation de composés hétérocycliques.
BE549679A (forum.php)
BE513813A (forum.php)
Raabe et al. Investigation of poly (arylene vinylenes), 39. Synthesis of functionalized poly (1, 4‐phenylene‐1, 2‐diphenylvinylenes) by dehydrochlorination of unsymmetric p‐xylene dichlorides
BE484828A (forum.php)
EP1611186A1 (fr) Polyimides perdeuteres, leur procede de preparation et leur utilisation en tant que materiaux transparents dans la zone de 2500 a 3500 cm-1
BE493741A (forum.php)
JP5157064B2 (ja) ポリインジゴフィルムおよびその製造方法
JPH11322922A (ja) 芳香族ポリエーテルの精製方法