Multiresponsive photopatterning organic-inorganic polymer hybrids using a caged photoluminescence compound
Multiresponsive photopatterning organic-inorganic polymer hybrids using a caged photoluminescence compound
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DOI：
10.1021/ma047320d
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发表时间：
2005-04
期刊：
影响因子：
5.5
通讯作者：
Tomoki Ogoshi;J. Miyake;Y. Chujo
中科院分区：
文献类型：
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作者：
Tomoki Ogoshi;J. Miyake;Y. Chujo
合成了聚(N,N-二甲基丙烯酰胺)修饰的笼状光致发光化合物2-(2'-苯甲酰苯基)苯并恶唑(BzPO)。通过利用有机聚合物的酰胺基团与由四甲氧基硅烷水解产生的硅烷醇基团之间的氢键相互作用来制备具有所获得的聚合物的透明聚合物杂化物。通过对所得聚合物杂化物进行紫外线照射，即使在硅胶基质中，BzPO 的笼释放反应也能快速发生，并且所得聚合物杂化物表现出源自 2-(2'-羟基苯基)苯并恶唑 (HPBO) 染料的光互变异构体的强绿色光致发光。 “类光刻胶”光图案聚合物杂化物的制备也可以通过在紫外线照射期间使用光掩模来完成。此外，通过水分子的吸附和解吸，HPBO 的羟基重新捕获，聚合物杂化物的光致发光被可逆地猝灭和发射。聚合物杂化物的混溶性取决于紫外...
The caged photoluminescence compound 2-(2‘-benzoylphenyl)benzoxazole (BzPO) modified with poly(N,N-dimethylacrylamide) was synthesized. Transparent polymer hybrids with the obtained polymer were prepared by using hydrogen bond interactions between amide groups of the organic polymer and silanol groups resulting from hydrolysis of tetramethoxysilane. By UV irradiation upon the obtained polymer hybrids, the cage-released reaction of BzPO quickly took place even in a silica gel matrix, and the resulting polymer hybrids showed strong green photoluminescence deriving from a phototautomer of 2-(2‘-hydroxyphenyl)benzoxazole (HPBO) dye. The preparation of “photoresist-like” photopatterning polymer hybrids could be also accomplished by using a photomask during UV irradiation. Furthermore, the photoluminescence of the polymer hybrids was reversibly quenched and emitted by the recaging of the hydroxyl group of HPBO with adsorption and desorption of water molecules. The miscibility of polymer hybrids depending on UV ...