Biocompatible laminates with tailored optical properties and process for their preparation

摘要

Method for producing a laminate from a substrate and at least one organic, transparent coating deposited thereon by means of pulsed PCVD, characterized by that by means of a plasma polymerization with the steps of fragmentation of a polyether as a precursor in the plasma and recombination of the reactive fragments on the substrate surface, a polymer consisting of the elements C, H and O with a ratio α = c (O) / c (C) with 0, 2 ≤ α ≤ 1.0 and a ratio β = c (H) / c (C) is deposited with 0.5 ≤ β ≤ 10, the composition, degree of crosslinking and distribution of the structural units of the polymer and refractive indices n _B in the range from 1.2 to 2.0, transmission values τ with τ 80%, extinction coefficients ε with ε ≤ 0.1, infrared-active HO oscillations in wavenumber ranges from 4800 cm ^-1 to 5300 cm ^-1 , from 3600 cm ^-1 to 3200 cm ^-1 and contact angle δ for water of δ ≤ 80 ° as well as repulsive interactions of the polymer with polar macromolecules can be adjusted by values for the pulse power P _pulse 100 W, for the ratio of the pulse pause tpp to the gas exchange time t _G$0.0015{\text{t}}_{\text{pp}}/{\text{t}}_{\text{G}}100$ and for the average power density π $0.0001\text{W}/{\text{cm}}^3\le \mathrm{\pi }\le 500\text{W}/{\text{cm}}^3$ to get voted.