On May 13, 2022, Corrado, Tanner; Wang, Tao; Huang, Zihan; Aboki, Joseph; Ford, Hunter O.; Schaefer, Jennifer L.; Guo, Ruilan published an article.Category: chlorides-buliding-blocks The title of the article was Polymer Morphological Effect on Gas Transport within Triptycene-Based Polysulfones. And the article contained the following:
In this study, the effect of polymer morphol. on chain packing and phys. and gas transport properties was explored via the creation and study of three polysulfone copolymer membranes-a random copolymer, 15k-15k (g/mol) multiblock copolymer, and polymer phys. blend-each containing a 50:50 mol equiv of triptycene and phenolphthalein bridging units. These polysulfones with varied morphologies were directly compared to each other, as well as to their relevant triptycene- and phenolphthalein-based polysulfone homopolymer counterparts. Each polysulfone containing equivalent amounts of triptycene and phenolphthalein exhibited similar phys. properties, densities, and fractional free volume results regardless of combination method. Similarly, gas permeation data followed an expected trend of performance between that of the two homopolymers for H2/CH4 and O2/N2 separations Uniquely, the random copolymer exhibited unexpected suppression of methane permeability and, to a lesser extent, nitrogen permeability, leading to the highest selectivities for CO2/CH4 and CO2/N2 among the series. This can likely be attributed to the greater abundance of triptycene and phenolphthalein units in close proximity along the polymer backbone in the random copolymer, leading to synergistic performance effects from different inter- and intrachain interactions unattainable in the multiblock, phys. blend, and homopolymers. The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Category: chlorides-buliding-blocks
The Article related to polymer morphol gas transport triptycene polysulfone, Plastics Fabrication and Uses: Plastic Product Uses and other aspects.Category: chlorides-buliding-blocks
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics