Abstract:
The present invention relates to a process for the manufacture of a porous polymer, wherein a composition comprising a polymerizable component, a porogen having an inverse temperature dependent solubility and a solvent are polymerized at a temperature around the cloud point temperature of the composition. The porous polymers obtainable according to the process of the invention are useful, for example, as materials for the manufacture of biomedical devices and prostheses, including ophthalmic devices such as contact lenses or artificial corneas.
Abstract:
Matériau comprenant un support en matériau composite poreux comprenant au moins une phase polymérique formant liant à base d'au moins un polymère choisi parmi les polymères thermoplastiques, les élastomères et les thermoplastiques élastomères, et une ou plusieurs charges choisies parmi les charges conductrices thermiques, les pores du support en matériau composite poreux étant remplies partiellement ou en totalité par au moins un matériau à changement de phase. Procédé pour la fabrication de ce matériau.
Abstract:
There is provided a method for preparing a porous gel. The method comprises using a porous polymer template. The porous gel according to the invention has a porosity that is continuous throughout the whole volume of the gel and that is tunable in terms of pore size distribution and average pore diameter. The porous gel can be used in various applications.
Abstract:
Microporous material comprising a polypropylene polymer having at least 20 percent crystallinity; and a compatible, amorphous, glassy polymer, wherein said polymers are miscible in a compound when heated above the melting temperature of the polypropylene polymer and wherein a polypropylene polymer phase separates from the compound when cooled below the crystallization temperature of the polypropylene polymer. Microporous material is made by a thermally induced phase separation process using a compound such as mineral oil to form one phase containing both polymers. The pores of the microporous material resist collapse during processing. Membranes made of this material are useful as battery separators having a good combination of strength, porosity, and ionic resistance when imbibed with an electrolyte.
Abstract:
본 발명은 고내열성 플라스틱 엔지니어링 수지를 이용하여 제조된 역오팔 구조를 갖는 다공성 분리막 기재 및 상기 분리막 기재를 제조하는 방법에 대한 것이다. 상기 방법은 가교되지 않은 고분자 수지를 이용하여 오팔 구조를 형성하고 가교된 고분자 수지를 상기 오팔 구조내에 침투시킨 후 유기 용매로 오팔 구조를 형성하는 고분자 입자를 용해시켜 역오팔 구조를 갖는 다공성 기재를 제조하는 것이다. 본 발명에 따르면 내열성 저하, 기공 폐쇄 및 두께 감소의 문제점을 갖지 않으면서도 우수한 기공도 및 통기도를 갖는 분리막이 제조될 수 있다.
Abstract:
Macroporous matrices containing molecularly imprinted photonic polymers (MIPPs) and methods of making these macroporous matrices are disclosed herein. The macroporous matrices can, for example, be used for detection of small molecules, such as metal ions, in a sample.
Abstract:
L'invention concerne un matériau solide contenant une charge active et permettant une grande accessibilité à cette charge. Ce matériau comprend une matrice en matière façonnable microporeuse et à pores ouverts, et une charge active particulaire dont une partie au moins est logée à l'état libre dans au moins une partie des pores de ladite matrice. L'invention concerne également un procédé de fabrication d'un tel matériau.
Abstract:
Porous polymeric resins, reaction mixtures and methods that can be used to prepare the porous polymeric resins, and uses of the porous polymeric resin are described. More specifically, the polymeric resins typically have a hierarchical porous structure plus reactive groups that can be used to interact with or react with a variety of different target compounds. The reactive groups can be selected from an acidic group or a salt thereof, an amino group or salt thereof, a hydroxyl group, an azlactone group, a glycidyl group, or a combination thereof.