Volume holographic recording in nanoparticle-polymer composite doped with multifunctional chain transfer agents
Volume holographic recording in nanoparticle-polymer composite doped with multifunctional chain transfer agents
复制标题
掺杂多功能链转移剂的纳米粒子-聚合物复合材料的体全息记录
DOI：
10.1007/s10043-015-0084-7
复制
发表时间：
2015
期刊：
影响因子：
1.2
通讯作者：
and Y. Tomita
中科院分区：
文献类型：
--
作者：
J. Guo;R. Fujii;and Y. Tomita
本文报道了以链转移多功能二硫醇和三硫醇为链转移剂的光聚合纳米颗粒-聚合物复合材料（NPCs）的体积全息记录性能的实验研究。结果表明，与单硫醇掺杂相比，多功能硫醇掺入npc对体积全息记录的影响更大，因为更多的化学反应参与了聚合物网络的形成。研究发现，与单硫醇掺杂情况类似，二硫醇和三硫醇的最佳浓度可以使饱和折射率调制最大化。由于过量的硫醇对光聚合事件的部分抑制，记录灵敏度随多功能硫醇浓度的增加而单调降低。
We report on an experimental investigation of the properties of volume holographic recording in photopolymerizable nanoparticle–polymer composites (NPCs) doped with chain transferring multifunctional di- and tri-thiols as chain transfer agents. It is shown that the incorporation of the multifunctional thiols into NPCs more strongly influences on volume holographic recording than that doped with mono-thiol since more chemical reactions involve in the polymer network formation. It is found that, as similar to the case of mono-thiol doping, there exist optimum concentrations of di- and tri-thiols for maximizing the saturated refractive index modulation. It is also seen that recording sensitivity monotonically decreases with an increase in multifunctional thiol concentration due to the partial inhibition of the photopolymerization event by excessive thiols.