Abstract:
The present disclosure describes a process for making a hyperporous material for capture and conversion of carbon dioxide. The process comprises the steps a first self-polymerisation of benzyl halides via Friedel-Crafts reaction. In the second step the obtained hypercrosslinked polymer is further coupled with an amine or heterocyclic compound having at least one nitrogen ring atom. The invention also relates to the material obtained to the process and its use in catalytic reactions, for instance the conversion of epoxides to carbonates. Salt-modified porous hypercrosslinked polymers obtained according to the invention show a high BET surface (BET surface area up to 926 m2/g) combined with strong CO2 capture capacities (14.5 wt %). The nitrogen compound functionalized hypercrosslinked polymer catalyst shows improved conversion rates compared to known functionalized polystyrene materials and an excellent recyclability. A new type of imidazolium salt modified polymers shows especially high capture and conversion abilities. Carbonates can be produced in high yields according to the inventive used of the obtained polymers.
Abstract:
Provided herein are non-peptide GLP-1 receptor modulator compounds, for example, of Formula I, pharmaceutical compositions comprising such compounds, and processes of preparation thereof. Also provided are methods of their use for the treatment of a metabolic disorder.
Abstract:
A method is provided for carrying out depolymerization of a polymer containing electrophilic linkages in the presence of a catalyst and a nucleophilic reagent, wherein production of undesirable byproducts resulting from polymer degradation is minimized. The reaction can be carried out at a temperature of 80°C or less, and generally involves the use of an organic, nonmetallic catalyst, thereby ensuring that the deploymerization product(s) aer substantially free of metal contaminants. In an exemplary depolymerization method, the catalyst is a carbene compound such as an N-heterocyclic carbene, or is a precursor to a carbene compound. The method provides an important alternative to current recycling techniques such as those used in the degradation of polyesters, polyamides, and the like.
Abstract:
The present invention relates to biodegradable compounds which exhibit hydrolytic stability upon storage and which are useful as fabric softener compositions with antistatic properties, hair conditioners, clay modifiers, and as sugar decolorizers. The compounds of the subject invention are of the formula:
1. A compound of the formula:
wherein:
R is alkyl, alkyl containing one or more ethylenic bonds, acyl or H; R 1 is
Abstract translation:本发明涉及在储存时表现出水解稳定性并且可用作具有抗静电性质的织物柔软剂组合物,头发调理剂,粘土改性剂和作为糖脱色剂的生物可降解化合物。 本发明的化合物具有下式:1.下式化合物:其中:R是烷基,含有一个或多个烯键的烷基,酰基或H; R1是 n
Abstract:
Aminopropyl ethylene diamine is reacted with a fatty acid or amide-forming derivative thereof to form a fatty diamide having a secondary amine group. The secondary amine group is then converted into a tertiary amine group by imidazoline formation or by alkoxylation and the tertiary amine group is quaternised. The resultant product includes an aminopropyl group which imparts improved fabric softening properties.
Abstract:
The present invention provides strategies to improve the moisture management properties of textiles while retaining high comfort levels. The treatments also help to protect textiles against microbial growth. The treatment strategies of the present invention are based at least in part on the use of cationic bis-imidazoline(s) and their salts. Quaternized bis-imidazoline cations and their salts are particularly preferred.