Abstract:
본 발명은 환경에 대한 부하가 큰 용제의 사용을 피할 수 있는 동시에, 공극률 및 구멍 직경 등의 파라미터도 비교적 용이하게 제어할 수 있고, 또한 얻어지는 비수전해질 축전 디바이스용 세퍼레이터의 전기 화학적인 안정성이 높은, 비수전해질 축전 디바이스용 세퍼레이터의 제조 방법을 제공한다. 본 발명은 5 내지 50㎛의 범위의 두께를 갖는 비수전해질 축전 디바이스용 세퍼레이터를 제조하는 방법에 관한 것이다. 본 발명에 따른 방법은, 분자 구조 중에 방향족 환을 갖지 않는 에폭시 수지, 경화제 및 포로겐을 포함하는 에폭시 수지 조성물을 제조하는 공정과, 에폭시 수지 시트가 얻어지도록, 에폭시 수지 조성물의 경화체를 시트 형상으로 성형하거나 또는 에폭시 수지 조성물의 시트 형상 성형체를 경화시키는 공정과, 무할로겐 용제를 사용해서 에폭시 수지 시트로부터 포로겐을 제거하는 공정을 포함한다.
Abstract:
A porous material includes a polyhexahydrotriazine material. Pores in the porous material can be of various sizes including nanoscale sizes. The porous material may be used in a variety of applications, such as those requiring materials with a high strength-to-weight ratio. The porous material can include a filler material dispersed therein. The filler material can be, for example, a particle, a fiber, a fabric, or the like. In some examples, the filler material can be a carbon fiber or a carbon nanotube. A method of making a porous material includes forming a resin including a polyhemiaminal or polyhexahydrotriazine component and a polythioaminal component. The resin can be heated to promote segregation of the components into different phases with predominately one or the other component in each phase. Processing of the resin after phase segregation to decompose the polythioaminal component can form pores in the resin.
Abstract:
The object of the present invention is to provide a porous membrane by which a useful component can be recovered while suppressing the clogging during filtration of a protein solution and from which only a small amount of an eluate is eluted even when an aqueous solution is filtered.The present invention provides a porous membrane containing a hydrophobic polymer and a water-insoluble hydrophilic polymer, the porous membrane having a dense layer in the downstream portion of filtration in the membrane, having a gradient asymmetric structure in which the average pore diameter of fine pores increases from the downstream portion of filtration toward the upstream portion of filtration, and having a gradient index of the average pore diameter from the dense layer to the coarse layer of 0.5 to 12.0.
Abstract:
Provided are a contact sensitive device, a display apparatus including the same, and a method of manufacturing the same. The contact sensitive device includes an electroactive layer formed of an electroactive polymer having a plurality of nano pores and an electrode disposed on at least one surface of the electroactive layer. The electroactive layer has a β-phase structure and improved piezoelectricity without performing a stretching process or a polling process.
Abstract:
A porous material includes a polyhexahydrotriazine material. Pores in the porous material can be of various sizes including nanoscale sizes. The porous material may be used in a variety of applications, such as those requiring materials with a high strength-to-weight ratio. The porous material can include a filler material dispersed therein. The filler material can be, for example, a particle, a fiber, a fabric, or the like. In some examples, the filler material can be a carbon fiber or a carbon nanotube. A method of making a porous material includes forming a resin including a polyhemiaminal or polyhexahydrotriazine component and a polythioaminal component. The resin can be heated to promote segregation of the components into different phases with predominately one or the other component in each phase. Processing of the resin after phase segregation to decompose the polythioaminal component can form pores in the resin.
Abstract:
Provided are porogen compositions and methods of using such porogen compositions in the manufacture of porous materials, for example, porous silicone elastomers. The porogens generally include comprising a core material and shell material different from the core material. The porogens can be used to form a scaffold for making a resulting porous elastomer when the scaffold is removed.
Abstract:
Technologies and implementations for providing melt processable poly(vinyl alcohol) blends and poly(vinyl alcohol) based membranes are generally disclosed.
Abstract:
The present invention generally relates to porous membranes and other porous articles. In one aspect, the present invention is generally directed to porous membranes and other articles that have a pore size comparable to feature sizes of the extracellular matrix. Such articles may be useful, for example, for tissue engineering (e.g., as a substrate for culturing cells), as a filter, or for other applications. In some cases, the membranes may be formed from biocompatible and/or biodegradable materials. In some embodiments, such membranes may be formed using solvent evaporation induced self-assembly (EISA) techniques, although other techniques may be used in other embodiments. Still other aspects of the present invention are directed to methods of using such articles, kits involving such articles, and the like.
Abstract:
The invention relates to an isolated waterproof polymeric nanomembrane comprising pores of different geometric shapes and of a controlled size between 10 and 1000 nm, which is larger than the thickness of the membrane, and a method of producing the same comprising the process steps a. Providing a sacrifice layer on a surface of a solid support; b. Providing a polymerized layer of less than 1000 nm thickness on the surface of the sacrifice layer, by depositing a mixture of a polymer or a polymer precursor with a geometrically undefined pore template which is larger than the thickness of the polymerized layer, optionally followed by polymerization and/or crosslinking; c. Removing the pore template to obtain the polymerized layer with a controlled pore size; and d. Removing the sacrifice layer, thereby separating the solid support from the polymerized layer.
Abstract:
Provided are: a polyetherimide porous body which has a fine cell structure, a low relative permittivity and a high insulation breakdown voltage; and a method for producing the same. This polyetherimide porous body comprises a crosslinked body in which a polyetherimide having a specific repeated structural unit is ring-opened and crosslinked with a polyamine compound.