This paper reports the utilization of the controllable coating via SI-ATRP technique as a promising approach for controlling stimuli-responsive capabilities of graphene oxide (GO) based nanocomposites. Various polymer brushes with controlled molar mass and narrow dispersity were grown from the surface of GO particles. Modification of GO with poly(methyl methacrylate) and poly(n-butyl methacrylate) was proved by transmission electron microscopy, thermogravimetric analysis with online FTIR recording and finally by X-ray photoelectron spectroscopy (XPS). Densities of GO-based materials were investigated and conductivity measurements showed the increase values. XPS and Raman shift was used to confirm the GO particles reduction. A compatibility of the filler with propylene-based elastomer was elucidated by melt rheology. The light-induced actuation capability was investigated on composite samples to show, that polymer hybrid particles based on GO have better compatibility with the polymer matrix and thus their proper dispersibility was significantly improved. In addition the plasticizing effect of the short polymer grafts present on the GO filler surface has the crucial impact on the matrix stiffness and thus the ability of composite material to reversibly respond to the external light stimulation.

本文报道了通过SI-ATRP技术可控涂层的应用，作为控制基于氧化石墨烯（GO）的纳米复合材料的刺激响应能力的有前途的方法。从GO颗粒的表面生长出各种具有受控摩尔质量和窄分散性的聚合物刷。用聚甲基丙烯酸甲酯和聚（n通过透射电子显微镜，在线FTIR记录进行热重分析，最后通过X射线光电子能谱（XPS）进行了证明。研究了GO基材料的密度，电导率测量显示出增加值。XPS和拉曼位移用于确认GO颗粒的减少。通过熔体流变学阐明了填料与基于丙烯的弹性体的相容性。对复合材料样品的光致驱动能力进行了研究，结果表明，基于GO的聚合物杂化颗粒与聚合物基质具有更好的相容性，因此其适当的分散性得到了显着改善。