Synthesis and study of photochromic properties of copolymers based on functionalized chromenes
作者:V. P. Grachev、G. M. Bakova、L. I. Makhonina、E. A. Yurieva、S. M. Aldoshin、A. M. Gorelik、V. A. Barachevskii
DOI:10.1007/s11172-011-0219-3
日期:2011.7
Chromenes functionalized with methacryl groups were synthesized and involved into the radical polymerization to obtain copolymers with ethyl acrylate. Comparison of spectral kinetic characteristics of poly(methyl methacrylate) glasses containing chromenes and photochromic copolymers as additives led to a conclusion that incorporation of a photochromic compound as a part of a copolymer into the polymeric glass increases efficiency of photocoloration of photochromic compounds in the polymeric layer.
Synthesis of new [2]rotaxane including a macrocyclic receptor and a photochromic unit
作者:Ekaterina A. Shilova、Valery P. Perevalov、Vasily V. Suslov、Corinne Moustrou
DOI:10.1016/j.tetlet.2008.03.110
日期:2008.5
The novel photochromic [2]rotaxane based on chromene molecule introduced into a crown-containing macrocyclic receptor was synthesized. The photochemical properties of rotaxane could be modified by the complexation of the crown ether moiety.
The synthesis of 3H-naphtho[2,1-b]pyrans 9–21 linked to a thiophene moiety is described. Two different synthetic approaches were applied to prepare these novel functionalized compounds, and their spectrokinetic properties in solution are reported.
3的合成ħ -萘并[2,1- b ]吡喃9 - 21连接于噻吩部分进行说明。两种不同的合成方法被用于制备这些新颖的功能化化合物,并报道了它们在溶液中的光谱动力学性质。
Rapid Decoloration of Photochromic 3<i>H</i>-Naphthopyran Attached to Three-Dimensional Poly(dimethylsiloxane) Network
elastomer was carried out by hydrosilylation reactions using 3H-9-(5-hexenyloxy)naphthopyran. The photochemical coloration and subsequent thermal decoloration behaviors of polysiloxane-bound 3H-naphthopyran molecules were examined by comparing their properties with those of a model 9-hexyloxy-3H-naphthopyran compound doped in a polysiloxane film, a PMMA film, and in solutions. The decoloration reaction