Two-photon polymerization of polydiacetylene.
Two-photon polymerization of polydiacetylene.
复制标题
聚二乙炔的双光子聚合。
DOI：
10.1021/jp806546u
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
L. Zeiri
中科院分区：
文献类型：
--
作者：
Olga Shusterman;A. Berman;Y. Golan;B. Horovitz;L. Zeiri
我们证明了可见光可以在双光子过程中将二乙炔单体聚合成聚二乙炔（PDA）。我们使用可变强度I的633 nm拉曼激光器测量PDA的拉曼强度来监测这一过程，并表明拉曼截面在短时间内随着I3而增加，对应于双光子过程。该工艺产生相对稳定的蓝相PDA，与UV聚合形成对比，UV聚合导致快速的蓝相到红相转变。
We show that visible light can polymerize diacetylene monomers into polydiacetylene (PDA) in a two-photon process. We monitor the process by measuring Raman intensities of PDA using a Raman laser at 633 nm with variable intensity I and show that the Raman cross section at short times increases as I3, corresponding to a two-photon process. The process generates a relatively stable blue phase PDA, in contrast with UV polymerization that leads to a fast blue to red phase transformation.