Diphenylbutylbenzyl- and diphenyldibenzylphosphonium chlorides are interfacial catalysts in cross-linking of fluorine-containing copolymers

Journal Article · Sat Sep 10 00:00:00 EDT 1988 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6289901

Lavrova, L N; Bondarenko, N A; Tsvetkov, E N; Nudel'man, Z N

Vulcanization in a two-phase system with an interfacial transfer catalyst (ITC) is widely used for obtaining highly thermostable rubbers from fluorine-containing rubbers, copolymers of vinylidene fluoride with hexafluoropropylene. A simple method of synthesis of tertiary diphenylalkylphosphines by alkylation of diphenylphosphine with alkyl halides in the presence of an aqueous alkali and aprotic bipolar solvents (dimethyl sulfide, dimethylformamide, and hexamethanol) has now been developed. They synthesized diphenylbutyl- and diphenylbenzylphosphines by this method, and they were subsequently transformed into the corresponding phosphonium salts by treatment with an excess of benzyl chloride. The prepared diphenylbutylbenzyl- and diphenyldibenzyl- phosphonium chlorides were tested as ITC in vulcanization of SKF-26 fluorine-containing rubber.

• OSTI ID: 6289901
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 61:3; ISSN JAPUA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COPOLYMERS
CROSS-LINKING
ELASTICITY
ELASTOMERS
ELONGATION
KINETICS
MECHANICAL PROPERTIES
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC POLYMERS
POLYMERIZATION
POLYMERS
REACTION KINETICS
RUBBERS
STRAINS
TENSILE PROPERTIES
VULCANIZATION