| 초록 |
Since most polymers are not inherently stable to light, their photochemical behavior remains a subject of constant interest. In this study, we investigated the photoinduced behavior of polymeric colloidal monolayer. A PS colloidal monolayer with interparticle bridges was prepared and exposed to the UV light. As a consequence of photochemical reactions containing chain-scission, UV irradiation induced morphological changes in the film surface including changes in the size, shape, and packing structure of PS particles, leading the morphological modifications of the interstice of the PS particles. In these processes, the interparticle bridges play an important role. By manipulating the UV irradiation time, fine tunning of size and shape of the interstice in the monolayer was achieved. Finally, the compositional modifications of the surface based on oxygen incorporation behavior caused by the photooxidation process are discussed based on the ATR –FTIR analyses. |
