METHOD OF PROCESSING CORE-SHELL NANOPARTICLE

• Main Authors: AKAMATSU TAKAFUMI, SHIN USOKU, ITO TOSHIO, IZU NORIYA, UCHIDA TOSHIO
• Format: Patent
• Language: English; Japanese
• Published: 02.07.2015
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; GENERAL PROCESSES OF COMPOUNDING; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; WORKING-UP

PROBLEM TO BE SOLVED: To provide a method of processing core-shell nanoparticles which is capable of sufficiently reducing the amount of shells.SOLUTION: An embodiment of the invention is a method of processing core shell nanoparticles having a core containing metal oxide and a shell containing polyvinylpyrrolidone crosslinked polymer. The method includes the steps of: mixing the core shell nanoparticles, water, and acid; and heating a mixed liquid in which the core shell nanoparticles, water, and acid are mixed together. The acid is monocarboxylic acid with a carbon number 1 or 2, or hydroxycarboxylic acid. 【課題】本発明の一態様は、シェルを十分に減量することが可能なコアシェル型ナノ粒子の処理方法を提供することを目的とする。【解決手段】本発明の一態様は、金属酸化物を含むコア及びポリビニルピロリドンが架橋しているポリマーを含むシェルを有するコアシェル型ナノ粒子を処理する方法であって、コアシェル型ナノ粒子、水及び酸を混合する工程と、コアシェル型ナノ粒子、水及び酸が混合された混合液を加熱する工程を有し、酸は、炭素数が１又は２であるモノカルボン酸、又は、ヒドロキシカルボン酸である。【選択図】なし