A macroporous, polystyrene based ion-exchange resin (Diaion®CR20) with surface amine group functionality has been investigated for its ability to react with aldehydes and HCN in an aerosol stream, and thus selectively reduce the yields of these compounds (in particular formaldehyde) in mainstream cigarette smoke.
The glass slide was firstly silylanized with 3-gycidoxypropyltrimethoxysilane (GPTMS) to generate surface epoxy group functionality.
The novelty lies on the molecular level investigation of the end group functionality on rheological properties of fractionated, monodisperse oligomeric perfluoropolyethers (PFPEs) with various molecular weights and chain-end functionalities in this study.
The division of FSSIM in components and tiers was useful to separate and group functionality, without lumping all functionality in one monolithic piece of source code with data.
Content curation and mapping service Pearltrees has decided to focus on the fact that people want to do things in groups and has as of today upgraded its core product with a groups functionality, called Pearltrees Team.
Bifunctional polyurethane-based macromonomers (BPUM) were synthesized from various molecular weights of polyethylene glycol (PEG) and hexamethylene diisocyanate (HDI) with different end group functionalities.
Advanced techniques such as X-ray Diffraction with Rietveld analysis, X-ray Photoelectron Spectroscopy and Scanning-Transmission Electron Microscopy with HAADF and EELS analysis were applied to unveil the origin of their differences which could not be correlated with the textural properties nor with the surface groups functionality.
As expected, the degree of conversion decreased with increasing molecular weight, i.e., with increasing end-group functionality.
The role of the four carbonyl groups, functionalities that could be involved in hydrogen bondings with enzymes active sites, was also investigated.
As such, we have investigated the synthetic modification of Dz10 23 with a guanidinium group, a functionality that reduces the anionic nature and can potentially enhance the membrane permeability of oligonucleotides.
