Copolymer formulation for directed self assembly, methods of manufacture thereof and articles comprising the same

Patent metadata

Field	Value
Publication number	US-2016186003-A1
Application number	US-201514944470-A
Country	US
Kind code	A1
Filing date	Nov 18, 2015
Priority date	Dec 30, 2014
Publication date	Jun 30, 2016
Grant date	—

Abstract

Disclosed herein is a composition comprising a block copolymer; where the block copolymer comprises a first polymer and a second polymer; where the first polymer and the second polymer of the block copolymer are different from each other and the block copolymer forms a phase separated structure; and an additive polymer; where the additive polymer comprises a reactive moiety that is reacted to a substrate upon which it is disposed; and where the additive polymer comprises a homopolymer that is the chemically and structurally the same as one of the polymers in the block copolymer or where the additive polymer comprises a random copolymer that has a preferential interaction with one of the blocks of the block copolymers.

First claim

What is claimed is:

1 . A composition comprising:
a block copolymer; where the block copolymer comprises a first polymer and a second polymer; where the first polymer and the second polymer of the block copolymer are different from each other and the block copolymer forms a phase separated structure; an additive polymer; where the additive polymer comprises a reactive moiety that is operative to react with a substrate upon which it is disposed; and where the additive polymer comprises a homopolymer that is the chemically and structurally the same as one of the polymers in the block copolymer or where the additive polymer comprises a random copolymer that has a preferential interaction with one of the blocks of the block copolymers; and a solvent

2 . The composition claim 1 , where the additive polymer has the structure of formulas (7A) or (7B):

where the reactive species X is a hydroxyl group, a thiol group, an amine group, a carboxyl group, a silane group or an alkoxy groups, R 1 , R 2 and R 3 can be the same or different and can be a hydrogen, a C 1-10 alkyl group, a C 1-10 alkyl ester group, a C 3-10 cycloalkyl ester group, a C 7-10 aralkyl ester group, a C 6 -C 14 aryl, a C 7 -C 13 alkylaryl or a C 7 -C 13 arylalkyl group.

3 . The composition of claim 1 , where the additive polymer is a polystyrene, a polysiloxane, a polymethylmethacrylate, a polyacrylate, a polyvinylacetate, a polydiene, a polyether a polyester, a polysiloxane, a polyorganogermane, or a combination comprising at least one of the foregoing polymers.

4 . The composition of claim 1 , where the additive polymer is a copolymer; where the copolymer is poly(styrene-b-vinyl pyridine), poly(styrene-b-butadiene), poly(styrene-b-isoprene), poly(styrene-b-methyl methacrylate), poly(styrene-b-alkenyl aromatics), poly(isoprene-b-ethylene oxide), poly(styrene-b-(ethylene-propylene)), poly(ethylene oxide-b-caprolactone), poly(butadiene-b-ethylene oxide), poly(styrene-b-t-butyl (meth)acrylate), poly(methyl methacrylate-b-t-butyl methacrylate), poly(ethylene oxide-b-propylene oxide), poly(styrene-b-tetrahydrofuran), poly(styrene-b-isoprene-b-ethylene oxide), poly(styrene-b-dimethylsiloxane), poly(styrene-b-trimethylsilylmethyl methacrylate), poly(methyl methacrylate-b-dimethylsiloxane), poly(methyl methacrylate-b-trimethylsilylmethyl methacrylate), or a combination comprising at least one of the foregoing copolymers.

5 . The composition of claim 1 , where the additive polymer is a hydroxyl terminated polystyrene, hydroxyl terminated polydimethylsiloxane, hydroxyl terminated poly(methylmethacrylate-random-trifluoroethylmethacrylate), a hydroxyl terminated poly(methylmethacrylate-random-dodecafluoroheptylmethacrylate), or a combination comprising at least one of the foregoing polymers.

6 . The composition of claim 1 , where the first polymer or the second polymer of the block copolymer comprises a polymer derived from monomers of a vinyl aromatic monomer, an ethylenically unsaturated monomer, 1-butene, 1,3-butadiene, isoprene, vinyl acetate, dihydropyran, norbornene, maleic anhydride, siloxane, or a combination comprising at least one of the foregoing monomers.

7 . The composition of claim 6 , where the vinyl aromatic monomer is styrene, o-methylstyrene, p-methylstyrene, m-methylstyrene, α-methylstyrene, o-ethylstyrene, m-ethylstyrene, p-ethylstyrene, α-methyl-p-methylstyrene, 2,4-dimethylstyrene, monochlorostyrene, p-tert-butylstyrene, 4-tert-butylstyrene, hydroxy styrene, acetoxy styrene, or a combination comprising at least one of the foregoing vinyl aromatic monomers.

8 . The composition of claim 6 , where the ethylenically unsaturated monomer is represented by formula (2):

where R 1 is a hydrogen or an alkyl group having 1 to 10 carbon atoms, by the formula (3):

where R 1 is a hydrogen or an alkyl group having 1 to 10 carbon atoms and R 2 is a C 1-10 alkyl, a C 3-10 cycloalkyl, or a C 7-10 aralkyl group or by the formula (4):

where R 1 is a hydrogen or an alkyl group having 1 to 10 carbon atoms and R 3 is a C 2-10 fluoroalkyl group.

9 . The composition of claim 1 , where the block copolymer is a poly(styrene)-block(b)-poly(alkylsiloxane), a poly(alkylstyrene)-b-poly(alkylsiloxane), or a combination thereof.

10 . The composition of claim 1 , where the composition when annealed to temperatures of 200 to 450° C. forms horizontal cylinders or spheres.

Assignees

• Rohm & Haas Elect Mat
• Dow Global Technologies Llc

Inventors

• Hustad Phillip D
• Trefonas Iii Peter
• Chang Shih-Wei

Classifications

• B81C2201/0149

  Forming nanoscale microstructures using auto-arranging or self-assembling material · CPC title

• C08L53/00 Primary

  Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers · CPC title

• C08L25/06

  Polystyrene · CPC title

• C09D153/00 Primary

  Coating compositions based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers · CPC title