在本文中，我們探討經間接轉印不同濃度PS/PMMA高分子相分離共聚物薄層至光學軟膠片NOA65上凹凸表面紋理結構分佈的物性及光學特性。本實驗是利用PS/PMMA兩不相容的高分子聚合物的相分離狀態，利用旋轉塗佈在玻璃表面且經環己烷處理後所產生的凹凸紋理結構，再以PDMS作為間接轉印橋梁，轉印到紫外光光學膠表面NOA65。PS/PMMA膜(membrane)為相分離的三層次薄層(subthin layer)結構，其頂層為PS-rich層、PS/PMMA共混物層和底層PMMA-rich層，通過有選擇性的溶劑（環己烷）溶解PS相，即可在薄膜表層上形成凹凸結構。所產生不同紋理的凹凸結構經間接轉印至NOA65上，會產生不連續凹凸紋理、平滑表面內裝飾很多凹處到呈現較明顯凹凸結構。NOA65光學軟膠本身不僅具有高軟度可捲曲和延展性較好的彈力特性外，然而本實驗觀察中，也發現PS/PMMA為40wt%，其凹凸紋理較均勻分佈於表面結構，其轉印到NOA65光學膠表面上，得到好的疏水性效果及灰塵不易沾黏等特性的自潔效應(正所謂蓮花效應)，及具有高穿透度、低反射與最小霧度值(霧度值常作為清晰度表示)，這些特性都可以應用在許多理想光學元件、螢幕，或玻璃展示櫃等。

In this paper, we studied the physical and optical properties of the mosaic textured surface of NOA65 photopolymer transfer-printed indirectly using thin layers of phase-separated PS/PMMA copolymer. The immiscible, phase-separated PS/PMMA co-polymer was spin-coated onto a glass surface and treated with cyclohexane to form the mosaic texture, then the texture was used to transfer print onto UV-curable NOA65 photopolymer with PDMS used as an indirect transfer bridge. The PS/PMMA membrane had three phase-separated sub-thin layer structures: the top PS-rich layer, the interlayer PS/PMMA blend, and the underlying PMMA-rich layer. Using a selective solvent (cyclohexane), the PS phase of the membrane surface was dissolved to form the mosaic structure. By transfer printing the mosaic structures of different textures indirectly onto the NOA65, three varieties of surface structure were formed: Non-continuous mosaic textures, smooth surfaces with many interior indentations, and more obvious mosaic structures. The NOA65 photopolymer not only has favorable elasticity, rendering it rollable and malleable, but our experimental observations also revealed that as there are samples with 60% PS and samples with 40% PMMA, transfer-printing onto the more evenly distributed mosaic texture on the NOA65 surface enabled it to have self-cleaning effects, such as hydrophobicity and not easily attracting dust (the so-called lotus effect) as well as possessing high optical transmittance, and low reflectance with minimal HAZE value (HAZE value often is expressed as clarity). These features can be applied to many common optical components such as screens, or glass display cabinets etc.

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