| 초록 |
Polymer blends are very useful to improve properties of polymeric materials. The phase morphologies and interfacial structures of polymer blends are important factors to determine a mechanical, electrical and optical properties of polymer blends. Phase separation of polymer blend are generally random orientation. In this study, Self Assembled monolayers(SAM) and corona discharge are used to make a ordered structure of immiscible polymer blend. We make a SAM pattern on gold substrate using micro contact printing. Polystyrene(PS) and polylatic acid(PLA) blend films are formed directionally on patterned substrate. Directional solidification of PS/PLA ｂlend is controlled by corona discharge which is generated from tungsten needle under high DC voltage. Micro structures of PL/PLA blends are shown ordered phase separation of which direction and morphology undergoes various influences such as polarity of SAM, electric field and pattern size. |
