Dispersion Control of Perylene Fluorophores in a Polymer Microsphere
Dispersion Control of Perylene Fluorophores in a Polymer Microsphere
复制标题
聚合物微球中苝荧光团的分散控制
DOI：
10.1080/15421406.2015.1096445
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
H. Oikawa
中科院分区：
文献类型：
--
作者：
K. Yoshioka;T. Onodera;H. Kasai;S. Okada;H. Oikawa
采用两种包埋方法制备了嵌有苝荧光团的聚苯乙烯（PS）微球：（A）以苝纳米晶为种子的苯乙烯种子聚合，（B）苝-苯乙烯溶液的乳液聚合。在这两种方法中，形成的PS微球约为100 μ m。200 nm的尺寸，大致大于裸的二萘嵌苯纳米晶体。有趣的是，两种PS微球的荧光峰位置均位于溶液和胶束状态之间。这些事实表明，在聚合过程中，在PS微球中的苝荧光团的分散状态将改变为溶液和水溶液状态之间的中间状态。
Polystyrene (PS) microspheres embedding perylene fluorophores have been fabricated by the two kinds of encapsulation method; (A) seed polymerization of styrene using perylene nanocrystals as a seed, and (B) emulsion polymerization of perylene-styrene solution. In both methods, the PS microspheres formed were ca. 200 nm in size, roughly larger than bare perylene nanocrystals. Interestingly, the fluorescence peak positions in both the PS microspheres were located between those of solution and nanocrystal states. These facts suggest that the dispersion state of perylene fluorophores in PS microspheres would be changed to be intermediate between solution and nanocrystal states during the polymerization process.