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Selective modification of two-dimensional MoS2 nanosheets by polymer grafting  
Selective modification of two-dimensional MoS2 nanosheets by polymer grafting
资料类型: PDF文件
关键词: MoS2  polymer  grafting  surface  modification  
资料大小: 754k
所属学科: 高分子化学
来源: 来源网络
简介:
As an emerging two-dimensional (2D) nanomaterial, single layer or a 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 UV grafting 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.
上传人: zhang_ning
上传时间: 2019-03-07 9:43:01
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