REMARKABLE ENHANCEMENT OF SECOND-ORDER NONLINEAR OPTICAL PROPERTIES OF POLYNORBORNENES HAVING PENDANT CHROMOPHORES. USE OF HYPER-RAYLEIGH SCATTERING T O ESTIMATE THE TACTICITY OF RIGID ROD POLYMERS
REMARKABLE ENHANCEMENT OF SECOND-ORDER NONLINEAR OPTICAL PROPERTIES OF POLYNORBORNENES HAVING PENDANT CHROMOPHORES. USE OF HYPER-RAYLEIGH SCATTERING T O ESTIMATE THE TACTICITY OF RIGID ROD POLYMERS
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DOI：
10.1021/ja983433z
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发表时间：
1999-02
影响因子：
15
通讯作者：
J. Sattigeri;C. Shiau;C. Hsu;F. Yeh;Sean Liou;Bih-Yaw Jin;T. Luh
中科院分区：
文献类型：
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作者：
J. Sattigeri;C. Shiau;C. Hsu;F. Yeh;Sean Liou;Bih-Yaw Jin;T. Luh
通过将有机生色团作为悬浮体排列成超分子骨架，可以构建二阶非线性光学器件。1-4当生色团以固定的非中心对称排列组织成螺旋多异氰酸酯和多肽的侧基时，这种非线性得到了增强。然而，对于加入到具有柔性主链的聚合物中的生色团，没有观察到第一超极化率-0值的增强。4简要探讨了由降冰片烯衍生物开环歧化聚合(ROMP)衍生的更刚性聚合物，如聚降冰片烯(PNB)在光电子领域的应用。5-7通过合成液晶聚合物、电致发光聚合物、6和含有不同芳基生色团的多嵌段共聚物来研究它们的稳态发射，证明了该方法的通用性。7.
Second-order nonlinear optical devices can be constructed by arranging the organic chromophores as pendants into a supramolecular backbone. 1-4 Enhancement of such nonlinearity has been observed when chromophores are organized in a fixed noncentrosymmetric arrangement as side groups of helical polyisocyanide and polypeptide. 1 However, no enhancement on the first hyperpolarizabilityâ0 values was observed for chromophores incorporated into a polymer with a flexible backbone. 4 The use of more rigid polymers such as polynorbornenes (PNB) derived from the ring-opening metathesis polymerization (ROMP) of norbornene derivatives in optoelectronic applications has been briefly explored. 5-7 The versatility of this methodology was demonstrated by synthesizing liquid crystalline polymers, 5 electroluminescent polymers, 6 and multiblock copolymers bearing various aryl chromophores to study their steady-state emission. 7