Synthesis and Properties of Functionally Substituted Unsaturated Polysulfones

Abstract

High-temperature copolymerization of ethyl esters of vinyl-or isopropenylcyclopropanecarboxylic acids with SO 2 was studied as a route to functionally substituted unsaturated polysulfones. The composition, structure, and some properties of the polysulfones obtained were studied. The copolymerization mechanism was considered.Copolymers of olefins with SO 2 , polysulfones (PSs), show much promise for practice [133]. In particular, they can be used as plastics, materials for concentrating sulfuric acid solutions [1], and coatings for fabrics, paper, and wood [2]. Polysulfone materials are used for insulation and soundproofing. Polysulfones prepared from SO 2 and higher olefins improve the viscosity index of hydrocarbon lubricants [3].

New Organic Chemistry of Sulfur Dioxide

“…Kinetic measurements showed induction periods followed by zeroth-order reactions. During the induction period, a white precipitate of a 1:1 copolymer of the alkene and SO 2 , a polysulfone, , forms. In the absence of SO 2 , the latter catalyzes the alkene isomerizations .…”

Radical ring‐opening polymerization of five‐membered cyclic vinyl sulfone using p‐toluenesulfonyl halides

“…Aliphatic polysulfones such as polyolefin sulfone and polyalkylene sulfone contain weak sulfur–carbon bond in the main chain that is readily cleaved under extreme ultraviolet irradiation, so that they have been utilized as resist material 2,3. In general, polyolefin sulfones have been synthesized by the radical copolymerization of olefins with sulfur dioxide 4–9. Another synthetic method of polyolefin sulfones is radical ring‐opening polymerization of cyclic vinyl sulfone monomers, which is quite attractive from viewpoint of polymer synthesis as well as material science, because it permits copolymerization with various vinyl monomers, allowing a wide range of design of polysulfones so as to meet various requirements 10–12.…”