Block copolymers on the basis of (meth)acrylate
AssigneesEvonik Röhm GmbH, Henkel AG & Co. KGaA
InventorsThomas Moeller, Volker Erb, Uwe Franken, Lars Zander, Hans-Georg Kinzelmann, Holger Kautz, Sven Balk, Dirk Kuppert, Stephan Fengler, Dorothea Staschik, Rebecca Pieroth
Life of this patent
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Abstract
The invention relates to block copolymers produced by means of controlled polymerization and that have at least one block A or B comprising (meth)acrylate monomers and copolymerizable monomers, and a block P on the basis of functionalized polymers.
Claims15
A block copolymer comprising a block P, block A and a block B, wherein
- P is a polymer block based on OH, SH, RNH-substituted polyethers, polyesters, polyurethanes, polyamides or polyolefins and has a number-average molecular weight of between 300 and 30,000 g/mol,
- A is a block based on (meth)acrylate monomers and/or copolymerizable monomers with a Tg>10° C.,
- B is a block based on (meth)acrylate monomers and copolymerizable monomers with a Tg<10° C.,
- A, B and P being connected to one another by covalent bonding of P with at least one initiator building block which is covalently bonded with blocks A and/or B through a controlled polymerization.
A method for producing block copolymers comprising a block P and at least one block A and block B, wherein a polymer building block containing OH, SH, RNH groups is used as block P, in which at least one of the OH, SH, or RNH groups of the polymer building block is reacted with haloacid derivatives and this reaction product is polymerized by ATRP reaction with radically polymerizable monomers selected from (meth)acrylates, styrene and monomers that are copolymerizable therewith.
A block copolymer comprising a block P, a block A and a block B, wherein
- P is a polymer block based on OH, SH, RNH-substituted polyethers, polyesters, polyurethanes, polyamides or polyolefins and has a number-average molecular weight of between 300 and 30,000 g/mol,
- A is a block based on (meth)acrylate monomers and/or copolymerizable monomers with a Tg>10° C.,
- B is a block based on (meth)acrylate monomers and copolymerizable monomers with a Tg<10° C., and
- wherein A, B and P are each connected to one another by covalent bonding of P with at least one initiator building block which is covalently bonded with blocks A and/or B through controlled radical polymerization and wherein the block copolymer has a polydispersity of less than 1.9.
A method for producing block copolymers having a polydispersity less than 1.9 comprising a block P, a block A and a block B, wherein a polymer building block containing OH, SH, RNH groups is used as block P, wherein at least one of the OH, SH, or RNH groups of the polymer building block is reacted with haloacid derivatives and this reaction product is polymerized by ATRP reaction with radically polymerizable monomers selected from (meth)acrylates, styrene and monomers that are copolymerizable therewith.
Dependencies are inferred from the claim text.