Hierarchically Porous Polymers from Hyper-cross-linked Block Polymer Precursors

CO2-in-PEG emulsion-templating synthesis of poly(acrylamide) with controllable porosity and their use as efficient catalyst supports

Porous poly(acrylamide)s nanoparticles prepared from CO₂-in-PEG emulsions have high catalytic activity for benzene hydrogenation reaction.

Hyper-crosslinked cyclodextrin porous polymer: an efficient CO2 capturing material with tunable porosity

Several cyclodextrin (CD)-based hyper-crosslinked porous polymers (HCPPs) were designed and synthesized for selective CO₂ adsorption and storage. A feasible way to tailor the porosity of the materials was also established.

Electrospun nanofibers with both surface nanopores and internal interpenetrated nanochannels for oil absorption

We report novel polyoxymethylene nanofibers with both surface nanopores and internal interpenetrated channels. Their novel interesting structure makes them an ideal alternative for oil adsorption, oil/water separation or catalysis in the future.

Comparison of hyper-cross-linked polystyrene/polyacryldiethylenetriamine (HCP/PADETA) interpenetrating polymer networks (IPNs) with hyper-cross-linked polystyrene (HCP): structure, adsorption and separation properties

HCP/PADETA IPNs can separate salicylic acid efficiently from phenol in a mixed solution.

Tunable porosity of 3D-networks with germanium nodes

Eight hyper cross-linked polymers based on tetrakis(4-ethynylphenyl)germanium and tetrakis(4-ethynylphenyl)methane are presented.

Photoinitiated Polymerization-Induced Microphase Separation for the Preparation of Nanoporous Polymer Films

We report on the use of photoinitiated reversible addition-fragmentation chain transfer (RAFT) polymerization for the facile fabrication of cross-linked nanoporous polymer films with three-dimensionally (3D) continuous pore structure. The photoinitiated polymerization of isobornyl acrylate (IBA) in the presence of 2-(dodecylthiocarbonothioylthio)-2-methylpropionic acid (CTA) and 2,2-dimethoxy-2-phenylacetophenone as a photoinitiator proceeded in a controlled manner, yet more rapidly compared to thermally initiated polymerization. When polylactide-macroCTA (PLA-CTA) was used, PLA-b-PIBA with high molar mass was obtained after several minutes of irradiation at room temperature. We confirmed that microphase separation occurs in the PLA-b-PIBA and that nanoporous PIBA can be derived from the PLA-b-PIBA precursor by selective PLA etching. To fabricate the cross-linked nanoporous polymer, IBA was copolymerized with ethylene glycol diacrylate (EGDA) in the presence of PLA-CTA to produce a cross-linked block polymer precursor consisting of bicontinuous PLA and P(IBA-co-EGDA) microdomains, via polymerization-induced microphase separation. We demonstrated that nanoporous P(IBA-co-EGDA) monoliths and films with 3D continuous pores can be readily obtained via this approach.

One-pot approach to Pd-loaded porous polymers with properties tunable by the oxidation state of the phosphorus core

Two new Pd-loaded heteroatom-containing microporous polymers Pd@NP and Pd@NPO were synthesized by one-pot Pd-catalyzed Heck coupling. .

Hypercrosslinked porous polymer nanosheets: 2D RAFT agent directed emulsion polymerization for multifunctional applications

2D hyper-cross-linked microporous polymers (2D HCPs) were synthesized by emulsion polymerization using trithiocarbonate functionalized graphene oxide as 2D macromolecular CTA.