The present invention provides methods, systems, and computer program instructions for enabling a variety of devices, particularly low-power hand-held devices, to travel seamlessly through a networking environment such as that encountered within a building by establishing connectivity to a plurality of network access points. The polymers find utility particularly in optical devices including optical waveguides and interconnecting devices. The support assembly is configured to connect to a structure. 2 to 4 h\u22121, producing a gas phase, an organic liquid phase and an aqueous liquid phase, and \u2014a stage of separating the gas phase, the organic liquid phase and the aqueous liquid phase at a pressure close to the reaction pressure, and recycling at least part of the gas phase separated in stage to stage, and hydrogenating at least part of the organic liquid phase separated in stage.