THÜRINGISCHES INSTITUT FÜR TEXTIL- UND KUNSTSTOFF-FORSCHUNG e.V.
发明人:
Gladitz, Michael,Reinemann, Stefan,Lärz, Andreas
申请号：
ES13403001
公开号：
ES2605627T3
申请日:
2013.03.20
申请国别(地区):
ES
年份:
2017
代理人:
摘要：
Method for the manufacture of non-covalent particulate compounds, in the form of dispersions of metal nanoparticles, composed of at least one partially modified, amphiphilic, dendritic polymeric material based on polyester, polyether, polyglycerin, polyglycerol, polyol, polyether or polyamide or combinations of the same, and with a degree of branching of between 50% and 100% as well as a molecular weight of between 5,000 and 50,000 g / mol, where the modification of the reactive reachable end groups is carried out to a degree ( X) with respect to the total nominal number of end groups (N) of the dendritic polymeric material, which is between 30% <；= X <；= 90% with aliphatic, branched or aromatic residues with a chain length between 6 and 24 atoms of carbon, and by metallic nanoparticles embedded inter- and intra-molecularly in the dendritic polymeric material, said nanoparticles having, based on bivalent metal ions s and of superior valence, a defined size with a bimodal size distribution, where: - a solution of an amphiphilic modified dendritic polymer is produced in a suitable medium A with a boiling point 1, - this solution is complemented with a precursor compound metal in the form of a metal salt in a molar ratio of functional groups (Z) of the skeleton of the dendritic polymer with respect to metal ions (Mey +), in the range of 64: 1 to 2: 1, - then mixed with a solution B, which has a boiling point 2 that is substantially higher than the boiling point 1 of the medium A, of a reducing agent having sufficient power to reduce the metal ions, in a molar ratio with respect to the metal ions ( Mey +) from 10: 1 to 1: 1, with stirring movement at room temperature and under semi-inert conditions, and - the homogenized mixture of solutions A and B is heated in a microwave oven, with m Simultaneous stirring while undergoing an inert gas flow, to boiling point 1, and then heated further until medium A has evaporated and reduction is completed, and product dispersion
