![]() In accordance with the present invention there is provided an aryletherketone polymer having repeating units of the formula: #STR3# wherein Ar is selected from the group consisting of #STR4# wherein Q is -O-, -CH 2 -or -CO. Other objects and advantages of the present invention will be apparent to those skilled in the art. It is another object of the present invention to provide optically clear films of the sulfo-pendent aryletherketone polymers and active NLO chromophores. Monodispersed optically clear films are obtained via the ionic association of the sulfonic acid groups on the polyaryletherketone and the basic functionality of the NLO chromophore.Īccordingly, it is an object of the present invention to provide high molecular weight sulfo-pendent aryletherketone polymers. We have prepared high molecular weight sulfo-pendent aryletherketone polymers which provide an ionic association mechanism for basic NLO chromophores. However, guest host polymer systems containing 20 to 30% by weight chromophores tend to phase separate, causing light scattering and loss of optical clarity. Other research efforts have been directed toward the incorporation of highly active NLO chromophores in guest host polymers. 14, 1997, disclose an acetylenic thermoset monomer which, when mixed with high performance thermoplastic materials, can be poled and cured at elevated temperatures to provide composites with second-order nonlinear optical (NLO) activity, improved thermal stability and optical transparency at wavelengths shorter than 830 nm. Finally, the synthesis of any polymeric material for potential commercial use must address the issues of low cost producibility, toxicity/carcinogenicity and waste disposal. For military applications, it is further necessary that a material retain at least 95% of its original EO coefficient after 10 years at 125° C. For a NLO EO polymer material to be commercially realistic, it must also be able to retain a reasonable second-order activity (>30 pm/V at 830 nm) at temperatures experienced during routine microelectronics circuit fabrication (as high as 320° C. A practical EO polymer must be spin coatable, easily poled by an electric field or self-assembled, have optical losses below 1 dB/cm and be capable of producing devices with modulation bandwidths of 100 GHz. The polymer properties necessary to efficiently frequency double light at 800 nm in a slab waveguide device include a χ (2) of 60 pm/V (μβ=350×10 -30 esu D) and no absorption at 400 nm.įor a polymeric material to have successful application in an electro-optic (EO) device, it needs to possess a somewhat different set of properties. The predicted advantages of such organic polymers for frequency conversion and integrated optics applications is headed by potential ease of fabrication and low cost. The present invention relates to aryletherketone polymer compositions containing pendent sulfo groups for ionic interaction with second order NLO chromophores.Ĭonsiderable research effort has been directed toward the use of organic second-order nonlinear (NLO) polymers in practical devices.
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