：Selective modification of two-dimensional MoS2 nanosheets by polymer grafting论文

本文主要研究内容

作者（2019）在《Selective modification of two-dimensional MoS2 nanosheets by polymer grafting》一文中研究指出：As an emerging two-dimensional （2D） nanomaterial, single layer ora few layers of molybdenum disulfide （MoS2） has drawn significant attention in the past decade. In the present work, we report a strategy in direct creating polymer brushes on MoS2 surfaces via S—C bond in the presence of UV light. The modification of MoS2 nanosheets can be achieved bilaterally or homolaterally by performing the UVgrafting polymerization on exfoliated MoS2 nanosheets or a single layer of MoS2 deposited on a silicon substrate. A series of vinyl monomers including methyl methacrylate （MMA）, styrene （St） and 2-isopropenyl-2-oxazoline （IPOx） could be applied to this approach, leading to the formation of poly （methyl methacrylate） （PMMA）, polystyrene （PS） and poly （2-isopropenyl-2-oxazoline） （PIPOx） brushes.AFM, IR, and XPS characterizations indicate the successful formation of homogeneous brush layers on MoS2 surfaces. The polymer brushes modified MoS2 may found potential applications in photo dynamic therapy and sensing technologies.

Abstract

As an emerging two-dimensional （2D） nanomaterial, single layer ora few layers of molybdenum disulfide （MoS2） has drawn significant attention in the past decade. In the present work, we report a strategy in direct creating polymer brushes on MoS2 surfaces via S—C bond in the presence of UV light. The modification of MoS2 nanosheets can be achieved bilaterally or homolaterally by performing the UVgrafting polymerization on exfoliated MoS2 nanosheets or a single layer of MoS2 deposited on a silicon substrate. A series of vinyl monomers including methyl methacrylate （MMA）, styrene （St） and 2-isopropenyl-2-oxazoline （IPOx） could be applied to this approach, leading to the formation of poly （methyl methacrylate） （PMMA）, polystyrene （PS） and poly （2-isopropenyl-2-oxazoline） （PIPOx） brushes.AFM, IR, and XPS characterizations indicate the successful formation of homogeneous brush layers on MoS2 surfaces. The polymer brushes modified MoS2 may found potential applications in photo dynamic therapy and sensing technologies.

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