Fabrication of one-dimensionally aligned reactive sites with non-contact process

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With the aim of fabrication of one-dimensionally oriented reaction site, we studied on photo-induced orientation behavior of polyamic acid with azo-benzene moiety (Azo-PAA), introduction of reaction site into silicon substrate, synthesis of fluorene derivatives with azo-benzene moiety and introduction of reaction site into partially imidized Azo-PAA. Partially imidized Azo-PAA with 3-aminopropyl-triethoxysilane aligned one-dimensionally by irradiation of polarized UV light with trans-cis isomerization of azo-benzene moiety. Triethoxysilane groups at top surface of aligned Azo-PAA may act as reaction sites with various functional groups