本研究之目的為利用高有序奈米多孔之聚苯乙烯為模版進行模板化聚合，製備具有高機械性質展現與光子晶體光學特性之奈米材料。首先利用聚苯乙烯共聚二甲基矽氧烷雙嵌段共聚物進行自組裝，製備具有高有序雙螺旋二十四面體之奈米微結構，接著以氫氟酸蝕刻含矽之二甲基矽氧烷鏈段，獲得具有高有序雙螺旋二十四面體奈米孔道結構之奈米模板，利用此模版進行模板化聚合高有序工業用樹酯(酚甲醛樹酯)以及生物高分子(甲殼素)奈米高分子材料之製備。由於雙螺旋二十四面體之結構特異性，以此技術製備之高有序酚甲醛樹酯可具有高能量吸收、快速應力分散等高機械性質展現，因此我們期望以此高有序酚甲醛樹酯應用於抗衝擊之材料。同時，藉由仿生的概念與雙網狀結構錯位原理，我們以此奈米模版製備近似於蝴蝶翅膀結構之奈米高有序甲殼素材料，並期望獲得如蝴蝶翅膀結構性發光之高反射光子晶體特性。希冀利用甲殼素不吸收紫外光波段之光學特性，將此特殊結構之高反射高有序奈米甲殼素材料應用於相關紫外光光學儀器上。因此，在此實驗中我們成功結合了可分解之雙嵌段共聚物之自組裝行為與模板化聚合之技術，提出了一個嶄新的方法以製備具雙螺旋二十四面體結構之高有序奈米混成與多孔高分子材料，並可藉由此特異結構達到高機械性質展現與光子晶體光學特性。

Herein we aim to fabricate well-ordered nanoporous polymers by using nanoporous polystyrene through templated polymerization. The nanoporous PS template is obtained from the self-assembly of polystyrene-b-poly(dimethylsiloxane) (PS-PDMS) followed by the acid etching of PDMS blocks, giving nanoporous PS with well-defined nanochannels with gyroid network texture. In this study, we demonstrate the feasibility of using the nanoporous PS fabricated for templated polymerization of resins (phenol-formaldehyde resins) and bio-polymer (chitosan). Owing to the unique networks of gyroid, the fabricated phenolic resin will be expected to exhibit mechanical metamaterial properties such as high specific energy absorption and efficient stress distribution. As a result, it is highly appealing to apply this intriguing texture to various anti-impact applications. Bio-mimicking from the structural coloration of butterfly wing structure, the fabricated nanoporous chitosan with shifting gyroid-structured nanonetworks is expected to give unique optical behaviors such as high reflectance. Note that the adsorption of chitosan in the ultra-violet region is low; as a result, it is highly appealing to exploit the well-ordered chitosan nanonetworks as high reflective materials for UV optical devices. As a result, by combining the self-assembly of degradable block copolymer with templated polymerization, we suggest a novel method for preparing well-defined nanoporous polymers with gyroid network texture for achieving high mechanical properties and photonic crystal behaviors.

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