Is is possible to prepare transparent polymer film instead of glass by using photochromism effect... if it is possible means what type of substrate used for preparing polymer thin film...

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There are many polymer/organic compound that show photochromic behavior, but there is still great obstacle that limit their commercialization. The major problem of this materials is their contrast. To study more about these polymer start with Spiropyran-based photochromics which studied in nanoscale and showed enhanced property recently.
Sir, I am doing project in photochromism, I have one doubt sir it is possible to get photochromism by adding silver nanoparticles/silver halide nanoparticles in pmma film.. can you please give suggestion sir... it will more useful for my project sir..

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Publications by A. Paszternák:

The potential use of cellophane test strips for the quick determination of food colours

pH and CO2 Sensing by Curcumin-Coloured Cellophane Test Strip

Polymeric Honeycombs Decorated by Nickel Nanoparticles

Directed Deposition of Nickel Nanoparticles Using Self-Assembled Organic Template,

Organometallic deposition of ultrasmooth nanoscale Ni film,

Zigzag-shaped nickel nanowires via organometallic template-free route

Surface analytical characterization of passive iron surface modified by alkyl-phosphonic acid layers

Atomic Force Microscopy Studies of Alkyl-Phosphonate SAMs on Mica

Amorphous iron formation due to low energy heavy ion implantation in evaporated 57Fe thin films

Surface modification of passive iron by alkylphosphonic acid layers

Formation and structure of alkylphosphonic acid layers on passive iron

Structure of the nonionic surfactant triethoxy monooctylether C8E3 adsorbed at the free water surface, as seen from surface tension measurements and Monte Carlo simulations