Welte Lorena, González-Prieto Rodrigo, Olea David, Torres M Rosario, Priego José L, Jiménez-Aparicio Reyes, Gómez-Herrero Julio, Zamora Félix
Departamento de Quimica Inorganica, Universidad Autonoma de Madrid, 28049 Madrid, Spain.
ACS Nano. 2008 Oct 28;2(10):2051-6. doi: 10.1021/nn800439v.
We present a mechanochemistry-based procedure to isolate individual chains on surfaces of a ruthenium MMX polymer. After sonication of solutions containing the two building blocks of the mentioned MMX polymer, time-depending structures are formed in the solution. The architecture of the different structures obtained in this process, as a function of the time, is monitored using atomic force microscopy. The resulting structures exhibit uniform subnanometer diameters over microns length, in agreement with the expected diameter for an individual polymer chain. From the atomic force microscope images, we infer a long persistence length for the linear structures. Finally, the effect of the temperature solution in the formation of the different structures is also addressed.
我们提出了一种基于机械化学的方法，用于在钌MMX聚合物表面分离单链。在对含有上述MMX聚合物两种结构单元的溶液进行超声处理后，溶液中会形成随时间变化的结构。使用原子力显微镜监测在此过程中获得的不同结构的结构，作为时间的函数。所得结构在微米长度上呈现均匀的亚纳米直径，这与单个聚合物链的预期直径一致。从原子力显微镜图像中，我们推断出线性结构具有较长的持久长度。最后，还讨论了温度溶液在不同结构形成中的作用。
