The alkyllithium initiated preparation of terminally functional polymers in high yield is accomplished by first capping a macromolecular polymer with an alkylene sulfide prior to terminating the molecule with a halogenated compound containing a polymerizable moiety. The resulting macromolecular monomers are useful in the preparation of graft copolymers by copolymerizing the macromolecular monomers with monomers copolymerizable therewith.
The application discloses a functionalized multiblock macromonomer of formula: ##STR1## or of formula: ##STR2## in which formulae: each of the blocks A, B and C represents a sequence of a monomer chosen from the acrylic, vinylaromatic, methacrylic, diene, vinylpyridine, vinylpyrrolidone, alkylene oxide, lactam, lactone and maleimide monomer classes, on condition that at least one of the blocks A and C is chosen from a different class to that of block B and that at least one of the blocks A, B or C is a (meth)acrylic sequence, m, n and p are integers representing the number of monomer units in the sequence under consideration, such that 3.ltoreq.n.ltoreq.1000, 0.ltoreq.m.ltoreq.1000 and 0.ltoreq.p.ltoreq.1000, on condition that m and p are not 0 at the same time, and F is a group terminated by O.sup.-, by OH, by an .alpha.,.beta.-ethylenic unsaturation, or by an oxirane groups. Also disclosed are processes for preparing the functionalized multiblock macromonomer which macromonomer combines the advantages of multiblock polymers containing acrylic sequences with the reactivity of macromonomers.
A composition comprises (A) an exopy resin and (B) a vinyl polymer having a reactive functional group selected from the group consisting of an alcoholic hydroxyl, phenolic hydroxyl, amino, amido and carboxyl group prepared by living radical polymerization, particularly the atom transfer radical polymerization of a vinyl polymer having a halogen atom and conversion of the halogen atom to a reactive functional group.
The present invention provides a vinyl polymer with an epoxy group terminally introduced therein and an epoxy resin composition comprising (A) an epoxy resin and (B) a vinyl polymer which has a main chain produced by living radical polymerization and has a reactive functional group at a main chain terminus. A flexible epoxy resin composition can be obtained using these compounds. The invention further provides an epoxy resin composition having an epoxy group at a main chain terminus thereof.
The present invention provides a vinyl polymer with an epoxy group terminally introduced therein and an epoxy resin composition comprising (A) an epoxy resin and (B) a vinyl polymer which has a main chain produced by living-radical polymerization and has a reactive functional group at a main chain terminus. A flexible epoxy resin composition can be obtained using these compounds. The invention further provides an epoxy resin composition-having an epoxy group at a main chain terminus thereof.
This invention relates to polymers which comprise the reaction product of: (A) about 1-99.8 weight percent of one or more nonionic, cationic, anionic or amphoteric monomers; (B) about 0-98.8 weight percent of one or more monoethylenically unsaturated monomers different from (A); (C) about 0.1-98.8 weight percent of one or more monoethylenically unsaturated macromonomers different from (A) and (B); (D) about 0.1-98.8 weight percent of one or more monoethylenically unsaturated macromonomers different from (A), (B) and (C); (E) about 0-20 weight percent or greater of one or more polyethylenically unsaturated monomers different from (A), (B), (C) and (D); and (F) about 0-25 weight percent or greater of one or more acrylates and/or methacrylates derived from a strong acid or a salt of a strong acid different from components (A), (B), (C), (D) and (E). The polymers of this invention are especially useful as thickeners and dispersants for aqueous systems, especially latex paints.
