نتایج جستجو برای: isocyanate
تعداد نتایج: 1172 فیلتر نتایج به سال:
The amino group in the MOF NH2-MIL-101(Cr) was post-synthetically converted into urea-groups partially using either ethyl isocyanatoacetate, furfuryl isocyanate, p-toluenesulfonyl isocyanate or 3-(triethoxysilyl)propyl acetonitrile. derived four novel urea-MOFs exhibit expected lower BET surface areas and pore volumes than MIL-101(Cr) MOFs but p-toluenesulfonyl-urea-modified exhibits an outstan...
Article history: Received 13 December 2010 Revised 1 February 2011 Accepted 9 February 2011 Available online 13 February 2011
The high toxicity of isocyanate species in the workplace demands development sensitive techniques for detection isocyanates to protect workers from adverse health effects.
In this work, we demonstrate experimentally the use of an array of gold nanodisks on functionalized silicon for chemosensing purposes. The metallic nanostructures are designed to display a very strong plasmonic resonance in the infrared regime, which results in highly sensitive sensing. Unlike usual experiments which are based on the functionalization of the metal surface, we functionalized her...
Biofilms formed by antibiotic resistant Staphylococcus aureus (S. aureus) continue to be a problem for medical devices. Antibiotic resistant bacteria (such as S. aureus) often complicate the treatment and healing of the patient, yet, medical devices are needed to heal such patients. Therefore, methods to treat these Biofilms once formed on medical devices are badly needed. Due to their small si...
UNLABELLED The relaxation processes of hybrid organic-inorganic polymer nanosystems (OIS) synthesized by joint polymerization of organic and inorganic components were studied using methods of differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA), and broadband dielectric relaxation spectroscopy (DRS). The organic component was a mixture of two products: high-molecu...
Polyamide 6/silica nanocomposites were synthesized by in situ ring-opening anionic polymerization of ε-caprolactam in the presence of sodium caprolactamate as a catalyst and caprolactam-functionalized silica as an initiator. The initiator precursor, isocyanate-functionalized silica, was prepared by directly reacting commercial silica with excess toluene 2,4-diisocyanate. This polymerization was...
The manuscript presents the latest data on market of isocyanates, methods for producing their eco-friendly substitutes and toxicity phosgene used in isocyanate production.
A series of new asymmetric ureas, urethanes, and other derivatives the framework structure have been synthesized by reactions adamantan-1-yl isocyanate generated in situ thermolysis carbamothioates with nitrogen-containing nucleophiles alcohols.
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