Self-assembled structures, method of manufacture thereof and articles comprising the same
Disclosed herein is a graft block copolymer comprising a first block polymer; the first block polymer comprising a backbone polymer and a first graft polymer; where the first graft polymer comprises a surface energy reducing moiety; and a second block polymer; the second block polymer being covalently bonded to the first block; wherein the second block comprises the backbone polymer and a second graft polymer; where the second graft polymer comprises a functional group that is operative to crosslink the graft block copolymer.
1. A graft block copolymer comprising:
a first block polymer; the first block polymer comprising a backbone polymer and a first graft polymer; where the first graft polymer comprises a surface energy reducing moiety; and
a second block polymer; the second block polymer being covalently bonded to the first block; wherein the second block comprises the backbone polymer and a second graft polymer; where the second graft polymer comprises a functional group that is operative to crosslink the graft block copolymer.
2. The copolymer of claim 1 , where the backbone polymer is a polynorbornene.
3. The copolymer of claim 1 , where the first graft polymer is a poly(fluorostyrene), a poly(tetrafluoro-hydroxy styrene), or a combination comprising at least one of the foregoing polymers.
4. The copolymer of claim 1 , where the first graft polymer is a poly(tetrafluoro-para-hydroxy styrene).
5. The copolymer of claim 1 , where the second graft polymer is a copolymer of a poly(hydroxy styrene) and a poly(N-phenyl maleimide).
6. The copolymer of claim 5 , where a molar ratio of the poly(hydroxy styrene) to the poly(N-phenyl maleimide) is 1:1.
7. The copolymer of claim 1 , where the first graft polymer comprises a functional group that facilitates crosslinking of the graft block copolymer.
8. The copolymer of claim 1 , where the functional group is selected from the group consisting of a phenol, a hydroxyl aromatic, a hydroxyl heteroaromatic, an aryl thiol, a hydroxyl alkyl, a primary hydroxyl alkyl, a secondary hydroxyl alkyl, a tertiary hydroxyl alkyl, an alkyl thiol, a hydroxyl alkene, a melamine, a glycoluril, a benzoguanamine, a urea, or combinations thereof.
9. The copolymer of claim 1 , where the functional group is a thiol.
10. An article comprising:
a crosslinked graft block copolymer having a cylindrical morphology, where the graft block copolymer comprises a first block polymer; the first block polymer comprising a backbone polymer and a first graft polymer; where the first graft polymer comprises a surface energy reducing moiety; and a second block polymer; the second block polymer being covalently bonded to the first block; wherein the second block comprises the backbone polymer and a second graft polymer; where the second graft polymer comprises a functional group that is operative to crosslink the graft block copolymer; where the crosslinked graft block copolymer has a bottle brush morphology.