Electropolymerized thin films with a microporous architecture enabling molecular sieving in harsh organic solvents under high temperature

Abstract

Electropolymerized conjugated microporous polymer (CMP) membranes enable molecular sieving in organic solvents under extreme conditions.

Construction of membrane reactors coupled with conjugated network hollow microspheres for cascade production of block copolymers

“…In addition, the membrane reactor has inspired a scalable and sustainable approach toward chemical production and processing, offering unbridled potential for increasing reaction efficiency and addressing limitations in product purication. [19][20][21][22][23][24][25][26][27][28] Rationally designed membrane reactors may enable the production of new materials that are prohibitively difficult to obtain by other means. Integrating PET-RAFT processes into membrane reactors has provided crucial information concerning necessary reactor design and materials, catalytic capabilities, and accessible molecular weight ranges as well as highlighting the overall ability to improve the results of polymerization relative to their batch reactor counterparts.…”

Construction and Chlorine Resistance of Thiophene-Poly(ethyleneimine)-Based Dual-Functional Nanofiltration Membranes

“…OCl − and HOCl are the major species of free chlorine under the respective alkaline and acidic conditions. The reactivity of the former is inferior to that of the latter, 8,10 thus causing less damage to the membrane. As a result, more stable water permeability is achieved for all membranes after chlorination in alkaline media.…”

“…As a result, the residual N–H groups of PIP on the PA membrane surface are either converted to N–Cl or oxidized to hydroxylamines . The latter is finally dehydrated to form an imine. , These changes not only alter the structural and physicochemical properties of the membrane but also cause chlorination degradation of the PA selective layer, eventually leading to the loss of membrane selectivity in separation. , Therefore, exploring novel PA membranes with excellent chlorine resistance has become a research focus recently.…”

“…8,9 These changes not only alter the structural and physicochemical properties of the membrane but also cause chlorination degradation of the PA selective layer, eventually leading to the loss of membrane selectivity in separation. 8,10 Therefore, exploring novel PA membranes with excellent chlorine resistance has become a research focus recently.…”

Graphene oxide offers precise molecular sieving, structural integrity, microplastic removal, and closed-loop circularity in water-remediating membranes through a covalent adaptable network

“…The results demonstrated the excellent pore size control achieved during fabrication and highlighted the suitability of the membrane for various applications requiring precise molecular separation and ltration. 36,37 Membrane surface properties: hydrophilicity, surface charge and morphology…”