Improvement of CO2/N2 separation characteristics of polyvinylamine by modifying with ethylenediamine

Relationship between polymer–filler interfaces in separation layers and gas transport properties of mixed matrix composite membranes

“…PVAm was obtained according to the method reported in our previous paper [30]. Multiwalled carbon nanotube (MWCNT) was purchased from Chengdu Organic Chemicals Co. deionized water was prepared in our lab.…”

“…Polyvinylamine (PVAm) is one type of the most promising polymer material for gas separation, especially in the field of acidic gas separation, which possesses higher permeance and separation selectivity [28][29][30][31][32][33][34]. Recently, PVAm is also used as polymer matrix in the mixed matrix composite membrane.…”

The Potential Applications of Nanoporous Materials for the Adsorption, Separation, and Catalytic Conversion of Carbon Dioxide

“…[ 9 ] Aliphatic amines are among the most popular choice of organic bases as adsorbents for CO 2 adsorption via neutralization to form carbamates (see Figure 1 ). These can be free amine molecules, [ 10 ] supported polyamine polymers, [ 11 ] and grafted amine groups on a support material. [ 12 ] Regardless of the form of amine, the principle of neutralization is essentially the same.…”

Recent developments in membranes for efficient hydrogen purification

“…In recent years, our group introduced a novel method that various amino group-containing small molecules were used to modify amino group-rich polymers via hydrogen-bonding crosslinking, which not only could achieve the optimization of membrane material structures at multiple levels, but also could increase the carrier concentration in the membranes [283][284][285][286][287]. Following this strategy, ethylenediamine (EDA), piperazine (PIP), monoethanolamine (MEA) and methylcarbamate (MC) were used as modifiers to incorporate into the PVAm matrix, and the formed hydrogen-bonding crosslinked networks were illustrated in Fig.…”