Size-Selective Yolk-Shell Nanoreactors with Nanometer-Thin Porous Polymer Shells
作者:Ying Jia、Sergey N. Shmakov、Paul Register、Eugene Pinkhassik
DOI:10.1002/chem.201501968
日期:2015.9.1
Yolk‐shellnanoreactors with metal nanoparticle core and ultrathin porouspolymershells are effective catalysts for heterogeneous reactions. Polymershells provide size‐selectivity and improved reusability of catalyst. Nanocapsules with single‐nanometer porousshells are prepared by vesicle‐templated directed assembly. Metal nanoparticles are formed either by selective initiation in pre‐fabricated
PADIAS, ANNE BUYLE;HALL, H. K., JR.;TOMALIA, DONALD A.;MCCONNELL, J. R., J. ORG. CHEM., 52,(1987) N 24, 5305-5312
作者:PADIAS, ANNE BUYLE、HALL, H. K., JR.、TOMALIA, DONALD A.、MCCONNELL, J. R.
DOI:——
日期:——
Hollow Fiber Membrane and Preparing Method Thereof
申请人:Bae Sung Su
公开号:US20080261017A1
公开(公告)日:2008-10-23
The present invention relates to a polyvinylidene difluoride hollow fiber membrane and a method of preparing the same, and more particularly, to an improved polyvinylidene difluoride hollow fiber membrane and a preparation method thereof, in which a spinning solution consisting of polyvinylidene fluoride, alcohol dendrimer and organic solvent is prepared, and then is subjected to solidification by a wet-phase transition process, cleaning and drying, in which alcohol dendrimer that is an organic material as a pore former is introduced, allowing uniform disperse of alcohol dendrimer in polyvinylidene difluoride to form pores, with each having a high dispersion ability and a uniform size, and in which an excellent adhesion durability is imparted, owing to the use of a single material of polyvinylidene difluoride, unlike the conventional hollow fiber membrane preparation method in which pores are formed using existing inorganic particles.