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.
Researchers at Rensselaer have created a technology that combines different modules of an LED light fixture into a single component that can be 3D printed.
Rensselaer inventors created a hybrid fiber UV photodetector with a completely new internal gain mechanism which can achieve extremely high external quantum efficiency for ultrasensitive UV sensing while at the same time only require low voltage supply. The new photodetector has a high potential for system integration; the size of hybrid fiber UV photodetector is comparable to a 2 cm long human hair, with negligible weight. It is highly flexible, can bend to any angle with a great flexibility and potential for smart system integration, such as Micro Robot, Lab on a Chip, etc.
Rensselaer inventors created a nanocomposite fiber that promotes quick coagulation during hemorrhage resulting in reduced mobility and improved survival. The nanofiber composite is comprised of halloysite nanoclay, a natural occurring aluminosilicate nanoclay that exhibits a hollow tubular scroll structure. Hemostatic products on the market are effective in the short-term but might lack the ability to provide prolonged clotting activity. The disclosed technology overcomes these limitations as the nanoclay is physically imbedded onto the surface of the nanofibers.
Todays integrated circuits often can include millions of integrated components and devices. However, for a given product, it sometimes is not possible to achieve on one chip all of the circuitry required. A major challenge then becomes the interconnection of the circuitry on mulitple chips or substrates while keeping the connection resistance low and path lengths short to minimize inductive and capacitive effects, permitting high speed operation. Thus, a structure and method of forming compact integrated circuit assemblies and interconnections is needed.
Solid state radiation detectors, such as neutron detectors and gamma ray detectors, have been proposed as alternatives to gas-tube based detectors. Radiation-detecting hetero-structures may be formed by using physical etching processes, such as reactive ion etching (RIE) to form trenches in a semiconductor substrate, followed by using chemical vapor deposition (CVD) to deposit radiation-detecting material within the formed trenches.
This technology relates to nanoparticles that are particularly beneficial in optical systems. The nanoparticles include phosphor-functionalized particles with an inorganic nanoparticle core, surface polymer brushes in the form of long and short-chain polymers bonded to the inorganic nanoparticle core, and organic phosphors bonded to the inorganic nanoparticle core or the short-chain polymers. Applications for this technology include LEDs, lighting devices, fixtures, efficient light conversion materials, etc.
Rensselaer researchers have developed a thermodynamically stable dispersion technology resulting in thick, transparent, high refractive index silicone nanocomposites that increase the light efficiency of LEDs and improve the emitted light color quality. The nanocomposites could also be processed as transparent bulk material with high filler loading, which is essential for optical, magnetic and biomedical applications.
This technology relates to synthesizing nanoparticles with multiple polymer assemblies attached. In one example, a first anchoring compound is attached to a nanoparticle, and a first group of monomers are polymerized on the first anchoring compound to form a first polymeric chain covalently bonded to the nanoparticle via the first anchoring compound. In another example, a first polymeric chain can be attached to the nanoparticle, where the first polymeric chain has been polymerized prior to attachment to the nanoparticle.
This technology relates to a photopolymerizable class of vinyl ether oligomers which can find application in the areas of coatings, adhesives, printing inks, photoresists and high impact composites. The versatile photopolymerization capability makes these oligomers an excellent strategic candidate for shrinkage control coatings in place of acrylates. These oligomers include photopolymerizable functional groups which manifests excellent uniform film forming characteristics when cured by UV or electron beam radiation.