Synthesis and characterization of cross‐linkable poly(phthalazinone ether ketone)s

Abstract

A novel class of crosslinkable poly(phthalazinone ether ketone)s with relative high molecularweight and good solubility were successfully synthesized by the copolymerization of bisphthalazinone containing monomer, 3,3 0 -diallyl-4,4 0 -dihydroxybiphenyl and 4,4 0 -difluorobenzophenone. The synthesized polymers with inherent viscosities in the range of 0.42 to 0.75 dL/g can form flexible and transparent membranes by casting from their solution. The crosslinking reaction of these polymers can be carried out by thermally curing of the virgin polymers in or without the presence of crosslinking agent. The experimental results demonstrated that the crosslinking reaction also occurred to some extent during the polymerization. The crosslinked polymers exhibited equivalent glass transition temperature (T g ) at lower crosslinking density, and showed higher T g than virgin polymers at higher crosslinking density. The crosslinked high-temperature polymer can be used as the base material for high temperature adhesive, coating, enamel material, and composite matrices.

Supercritical CO2‐assisted formation of metal–organic framework‐loaded porous polystyrene membranes for dye removal

“…MOF with superior advantages over other conventional adsorbents in removing dyes from the aquatic environment has attracted much attention in recent years 15 . Structuralized MOF–polymer hybrid materials are one of the promising adsorbents for the removal or separation of organic pollutants from water 16–19 . A three‐dimensional‐printed polymer coated with a Cu‐BTC (BTC: 1,3,5‐benzenetricarboxylic acid) MOF showed a high coverage of the MOF, considerable adsorption capacities, and high removal efficiencies for dyes from aqueous solution 20 .…”

“…15 Structuralized MOF-polymer hybrid materials are one of the promising adsorbents for the removal or separation of organic pollutants from water. [16][17][18][19] A three-dimensional-printed polymer coated with a Cu-BTC (BTC: 1,3,5-benzenetricarboxylic acid) MOF showed a high coverage of the MOF, considerable adsorption capacities, and high removal efficiencies for dyes from aqueous solution. 20 These structuralized MOF-polymer hybrid materials can be reused repeatedly for removal of dyes from aqueous solution.…”

Facile synthesis of ZIF‐67@PVA/CA nanofibrous aerogel as efficient and recyclable catalyst for the degradation of organic pollutants through peroxymonosulfate activation

“…A strategy to overcome the problem of processability and recyclability could be to integrate MOFs onto or within substrates in desired forms, such as fibers, membranes, foams, sponges, aerogels and hydrogels. [23][24][25] Among various substrates, aerogels have received more focus as support for MOFs, due to their remarkable characteristics, including ultra-low density, and high specific surface area. 26,27 Ren et al developed a technique to fabricate recyclable metal-organic framework/cellulose aerogels that could efficiently activate PMS to degradation of organic pollutants.…”

Carbazole‐based poly(aryl ether ketone) containing crosslinkable allyl groups on the side chains: synthesis, characterization and properties

“…As a crosslinkable group that contains a double bond, the allyl group has recently been the subject of considerable attention because of its easy incorporation into polymers . During the crosslinking reaction, no components are released that would lead to the formation of pinholes and microcavities .…”