Controlling mobility speed of dye molecules in polydimethylsiloxane through molecular weight and solubility
Controlling mobility speed of dye molecules in polydimethylsiloxane through molecular weight and solubility
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DOI：
10.1364/ome.6.003417
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发表时间：
2016
影响因子：
2.8
通讯作者：
H. Yoshioka;Yusuke Itoh;Ayumu Kiyomori;Y. Oki
中科院分区：
文献类型：
--
作者：
H. Yoshioka;Yusuke Itoh;Ayumu Kiyomori;Y. Oki
我们通过开发具有不同分子结构的新发色团，研究了有机发色团在聚二甲基硅氧烷（PDMS）中迁移速度的控制。作为一种新型的发色团，以七甲基三硅氧烷（HMTS）为载体，制备了pdms -可溶性香豆素基和吡啶基发色团。然后，对这些新发色团的光学性质和迁移性进行了评价。迁移率特性的研究表明，分子量和溶解度都影响扩散系数。在溶解度低的情况下，分子量是决定扩散系数的主要因素。另一方面，在高溶解度时，分子溶解度是主要因素。据我们所知，这是第一次研究通过分子量和溶解度来控制PDMS中的扩散系数。
We experimentally evaluated the control of the mobility speed of organic chromophores in polydimethylsiloxane (PDMS) by developing novel chromophores with different molecular structures. As novel chromophores, PDMS-soluble coumarin- and pyrromethene-based chromophores were developed by attaching heptamethyltrisiloxane (HMTS). Then, the optical and mobility properties of these novel chromophores were evaluated. The investigation of mobility characteristics revealed that molecular weight and solubility both influence the diffusion coefficient. In the case of low solubility, molecular weight is the dominant factor in determining the diffusion coefficient. On the other hand, molecular solubility is the dominant factor at high solubility. To the best of our knowledge, this is the first investigation on controlling the diffusion coefficient in PDMS through the molecular weight and solubility.