A novel structure and photochromism of heteropolyoxometalates dispersed in polymer networks

Preparation and visible-light photochromism of phosphomolybdic acid/polyvinylpyrrolidone hybrid film

“…Polyoxometalates(POMs) are a unique class of inorganic metal-oxide clusters and have been proved to be an attractive class of photochromic materials due to the ability of accepting one or more electrons to yield mixed-valency colored species(heteropolyblues or heteropolybrowns) [4][5][6][7][8] . Nowadays, many photochromic materials based on POM embedded into polymeric networks via non-covalent bonding were prepared, which improved the physical and chemical performance of hybrid films significantly [9][10][11][12] .…”

PWA-diureasils organic–inorganic hybrids. Photochromism and effect of the organic chain length

“…Zhang et al have shown a strong interaction between heteropolyanion and matrix based on aminosilanes photochromic mechanisms are related to the interaction between amino groups of the APS silane and PWA [7]. Bao et al have also described an interaction of the polyanion with polyacrylamide polymer [17]. For both works the photochromic mechanism proposed are related to the interaction between heteropolyanion and matrixes in which contain N-H groups.…”

Visible‐Light Photochromism of Polyoxometallate H4PMo11VO40 Composite Film Based on Polyvinylpyrrolidone with a Fast Response

“…[1][2][3][4][5][6] Nowadays, a lot of POMs-based inorganic-organic composite functional materials were studied for their ability to combine the advantages of organic and inorganic. Composite materials prepared by POMs contain W or Mo with organic compound such as polymer, [7][8][9] amine [10][11] and carboxylate [12][13] have been shown to improve photochromic ability, at the same time expand the diversity of functional materials. The excitation source of photochromic materials is mostly ultraviolet light.…”