2008-11-012024-05-16https://scholars.lib.ntu.edu.tw/handle/123456789/667364摘要：本計畫首先要探討溶劑對嵌段共聚物超分子薄膜為結構之影響。超分子薄膜是由小分子3-pentadecylphenol (PDP) 與嵌段共聚物polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP)上之P4VP團塊透過氫鍵而形成，此薄膜內之微結構會隨著PDP的含量多寡而形成不同的構形與方向性。過去的研究皆以氯仿為溶劑來製備薄膜，本研究則要以與PS、P4VP與PDP具不同親和力的溶劑來製備薄膜。這種溶劑效應已經被證實對其他簡單嵌段共聚物薄膜結構有極大的影響，但目前尚未對超分子薄膜做有系統的研究。本計畫第二個目的在於探討將PDP移去後對於薄膜解構的影響。在製成薄膜後，可以利用選擇性溶劑或加熱將PDP全部或部分移除，如此一來薄膜結構將呈現不穩定狀態，此時若將薄膜再一次做溶劑退火，藉由分子鏈的移動與團塊的不同膨脹率，預期將會產生新的結構。本研究計畫的主要目標為發展新的薄膜結構與尋求製備高規整性薄膜的方法來擴展嵌段共聚物薄膜的應用。<br> Abstract: We propose to firstly investigate the solvent effects on the microdomains of block copolymer-based supramolecular thin films. In the presence of hydrogen-bonded 3-pentadecylphenol (PDP), polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) self-assembles into a variety of microstructures that can be parallel or perpendicular to the surface in thin films depending on the amount of PDP added. However, the solvent used to produce and anneal such films has been only focused on chloroform. We plan to use solvents which have different affinity with PS, P4VP and PDP to fabricate thin films. Such solvent effects have been proved to efficiently alter the morphologies, orientation and ordering of other simple block copolymer thin films. However, a systematical investigation in supramolecular thin film is still absent. Secondly, we propose to create new morphologies in thin films using a new strategy, that is, by partially or completely removing PDP from pre-formed thin films, one may obtain new morphologies by talking the advantage of the rearrangement of copolymer chains due to the thermodynamic instability caused by the removal of PDP. We eventually expect to obtain new morphologies as well as long-range order of microdomains which we believe can expand the applications of block copolymer thin films.