摘要:
Provided is an organic-inorganic hybrid composite of a polymerized cyclic nitroxide radical compound and inorganic nanoparticles. Such a composite is capable, for example, of maintaining a stable nanoparticle shape in gastric fluid, and can be used by itself or as a carrier for delivery of another drug to the intestines.
摘要:
The present invention relates (per)fluoropolyether compounds comprising a (per)fluoropolyether chain (Rf) having at least two chain ends, wherein at least one of said chain ends have a bi- or ter-phenyl group bearing at least one nitro group and, optionally one or more further substituents. The invention also relates to processes for the preparation of such compounds and to their use for the preparation of lubricant compositions in the form of oils or greases.
摘要:
The present disclosure provides for the synthesis of branched polyamines. In embodiments, branched polyamines may be formed by reacting a branched polyol with a nitroaryl carboxylic acid to form a nitrobenzoyl ester which, in turn, may then be subjected to a hydrogenating step to form the branched polyamine. The resulting branched polyamine may then be reacted with another hydrogel precursor to form a hydrogel.
摘要:
Provided is an organic-inorganic hybrid composite of a polymerized cyclic nitroxide radical compound and inorganic nanoparticles. Such a composite is capable, for example, of maintaining a stable nanoparticle shape in gastric fluid, and can be used by itself or as a carrier for delivery of another drug to the intestines.
摘要:
The present disclosure provides for the synthesis of branched polyamines. In embodiments, branched polyamines may be formed by reacting a branched polyol with a nitroaryl carboxylic acid to form a nitrobenzoyl ester which, in turn, may then be subjected to a hydrogenating step to form the branched polyamine. The resulting branched polyamine may then be reacted with another hydrogel precursor to form a hydrogel.
摘要:
Use as stabilizers of perfluoropolyether oils at high temperatures, higher than 200° C., of compounds not containing phosphor and having the general formula (A):
摘要:
Use as stabilizers of perfluoropolyether oils at high temperatures, higher than 200null C., of compounds not containing phosphor and having the general formula (A): 1