Induced optical chirality of poly(diacetylene) film by circularly polarized light and its control by changing substrate temperature
Induced optical chirality of poly(diacetylene) film by circularly polarized light and its control by changing substrate temperature
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DOI：
10.1143/jjap.47.1359
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发表时间：
2008-02-01
影响因子：
1.5
通讯作者：
Iwamoto, Mitsumasa
中科院分区：
文献类型：
--
作者：
Kohn, Hideki;Ohshima, Yuki;Iwamoto, Mitsumasa
通过改变衬底温度（313和273 K），利用圆偏振光（CPL）对非手性单体聚合的蓝相聚二乙炔（PDA）薄膜的手性强度进行了有效的控制。得到的吸收光谱没有显示使用左和右CPL聚合的PDA膜之间的差异，而具有相反的手性PDA膜选择性地产生由左和右CPL照射。在313 K下制备的PDA薄膜比在273 K下制备的PDA薄膜具有更强的手性。显微镜观察清楚地表明，手性的强度取决于域的大小。
The strength of chirality of a blue-phase poly(diacetylene) (PDA) film polymerized from achiral monomers using circularly polarized light (CPL) was effectively controlled by changing substrate temperature (313 and 273 K). The obtained absorption spectra did not show a difference between PDA films polymerized using left- and right-CPL, whereas the chiral PDA films with opposite chirality were selectively produced by left- and right-CPL irradiations. The PDA film prepared at 313 K showed stronger chirality than that prepared at 273 K. Microscopy observation clearly indicates that the strength of chirality depends on the domain size.