Applications of Porous Polymers

Methane, CH4, is a transitional fuel source because of its high ratio of hydrogen to carbon. The US DOE target for CH4 storage is 180 (v/v) at 35 bar and 298 K. The optimal heat of adsorption for CH4 storage at room temperature has been determined to be 18.8 kj mol .  

A convenient method for H2 storage is physisorption within a highly porous material. That s where porous polymers come into play. What is crucial for efficient storage of gas molecules under suitable and practicable conditions is the presence of a large number of small micropores, as multiple sorbate-sorbent interactions increase the enthalpy of adsorption to enhance the storage capability. For reversible H2 storage at room 

Isosteric heats of adsorption for methane sorption in carbon-based compounds fall within the exact storage range close to ambient temperatures, which makes organic porous compounds important candidates for methane storage. 

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Other applications of porous polymer monoliths in CEC column... 

OTHER APPLICATIONS OF POROUS POLYMER MONOLITHS IN CEC COLUMN TECHNOLOGY... 

We are interested in the application of porous polymers for the preparation of adsorbents [191,192], ion exchangers [193,194], and membranes [60,198,199]. For these applications, cross-linked polymers are fundamentally applied. 

Applications of Porous Polymers and Coordination Polymers in Adsorption Processes... 

Common packed column applications of porous polymers... 

Table 1.1 Structural framework, pore size, surface area and major applications of porous polymers. 

The applicability of porous polymers lies in their structural framework, porosity and surface area. Thus, by modification of the framework, controlling the porosity and changing the surface area, it is very much possible to tune their applicability over a huge range. 

Processing technique It is very difficult to process porous polymers because most of the amorphous porous polymers are in the powder form, while crystalline porous polymers are nanocrystals. Only PIMs and soluble CMPs are solution-processable. A breakthrough with regards to the processing technique will expand the applications of porous polymers. 

One of the principal practical applications of porous polymers in routine analysis is the analysis of traces of water [43]. Water is eluted very early on most organic polymer adsorbents. For example, water elutes just after ethylene, being totally resolved from it, on Porapeik G. On the other heind. 

Carbon dioxide can be analyzed very well by using porous polymer types of adsorbents. These materials have also been introduced coated in capillary columns. The porous polymer adsorbent has retention characteristics which are totally different from the Molsieve. Although it is not yet clear whether the retention of a porous polymer is caused by gas-solid or by a gas-liquid chromatographic process, the practical application of porous polymers has shown that they provide a high retention and that they are applicable for a wide range of compounds. 

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