Acceleration of the UV Curing of Oxetane Monomers

New processes are proposed for preparation of novel, highly reactive, renewable substrate oxetane polymers, making it possible to use cationic oxetane photopolymerizations in many high-speed coatings, printing inks, adhesives, as well as in additive manufacturing processes such as stereolithography, digital imaging and in ink-jet printing. Specifically, an epoxide accelerant, such as 2,2-substituted epoxide, 2,2,3-substituted epoxide, 2,2,3,3-substituted epoxide, and mixtures thereof, is reacted with one or more equivalents of a 3-monosubstituted oxetane or a 3,3-disubstituted oxetane.

Mobile Human-Friendly Assistive Robot

Researchers at Rensselaer created a robotic assistant that is more versatile, cheaper, and which can be remotely controllable by anyone whose mobility is impaired. The disclosed robotic assistant generally comprises a motorized base and dual arm robot mounted thereon. The robotic assistant is designed to be utilized by mobility impaired individuals through a sip-and-blow interface, tongue command device, eye/blink tracker, a joystick, etc., to, e.g., command the motion of the assistant to pick up objects from floor or shelf, to inspect suspicious noise, etc.