Abstract
A photon transmission method has been used to study interdiffusion processes during film formation from hard latex particles. Films with different latex content were prepared separately by annealing poly(methyl methacrylate) (PMMA) particles above the glass transition temperature. The transmitted photon intensity from these films increases as the annealing temperature is increased. Monte Carlo simulations are performed for photon transmission through a rectangular lattice. The increase in the transmitted photon intensity (Itr) is attributed to the latex content (film thickness) for the annealed film samples. It is observed that as the latex particles are packed (film thickness is increased) fewer voids or cracks are formed in the films. A negative absorbance coefficient has been measured above the 180 °C annealing temperature. Packing coefficients are obtained for films having various latex contents. © 2000 Society of Chemical Industry
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