25-05-2017 дата публикации
Номер: US20170145139A1
Принадлежит:
Crosslinkable random copolymers comprising atom transfer radical polymerization (ATRP) initiators and crosslinked copolymer films formed from the copolymers are provided. The random copolymers, which are polymerized from one or more alkyl halide functional inimers and one or more monomers having a crosslinkable functionality, are characterized by pendant ATRP initiating groups and pendant crosslinkable groups. 1. A method of making a crosslinked copolymer film , the method comprising:forming a random copolymer by polymerizing a first monomer comprising an alkyl halide functional group that is capable of acting as an ATRP initiator and a second monomer comprising a crosslinkable functional group, wherein the random copolymer comprises pendant alkyl halide functional groups and pendant crosslinkable groups;subsequently depositing the polymerized random copolymer as a film on a substrate surface; andsubsequently crosslinking the crosslinkable functional groups of the deposited random copolymer, such that crosslinks are formed between chains of the random copolymer in the film;wherein the film comprising the crosslinked random copolymer is not covalently bonded to the substrate surface.2. The method of claim 1 , wherein depositing the polymerized random copolymer on the substrate surface comprises spreading the polymerized random copolymer on the substrate surface.3. The method of claim 1 , wherein the crosslinked copolymer film has a thickness in the range from 2 nm to 6 nm.4. The method of claim 1 , wherein the first monomer is selected from acrylate monomers having an alkyl halide functional group claim 1 , methacrylate monomers having an alkyl halide functional group claim 1 , styrene monomers having an alkyl halide functional group claim 1 , or combinations thereof.5. The method of claim 1 , wherein the crosslinkable functional group comprises a thermally self-crosslinking functional group.6. The method of claim 1 , wherein the crosslinkable functional group ...
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