| 초록 |
Confocal technique offers several advantages over conventional optical microscopy or spectroscopy, including controllable depth of focus, elimination of the out-of-focus information and the ability to collect serial optical sections from thick specimens which construct 3-dimensional image. It has been applied in the field of fluorescent biomaterials. Recently we applied confocal techniques for the study of polymer dynamics. In this talk, several unique studies are presented on the in-situ investigation of the polymer dynamics. Raman spectroscopy combining confocal techniques investigate molecular conformation of the polymer liquids (polydimethylsiloxane, PDMS) under confinement and the anisotropic ratio of Raman intensities reveals the change in the conformation of polymer liquids under confinement. Also, confocal microscopy enables the tracking of the dynamic process of block copolymer (BCP) morphologies which has been impossible by conventional microscopic techniques such as transmission electron microscopy(TEM) or atomic force microscopy (AFM) besides static measurement of microstructures (direct 3-D imaging of block copolymer morphology). Confocal techniques is expected to open up many possibilities to investigate the dynamic process of polymer solution or the morphological studies of BCP self-assembly in the non-destructive way. |
