Applications of Polyacetylene Derivatives in Gas and Liquid Separation

Abstract

As a low energy consumption, simple operation and environmentally friendly separation method, membrane separation has attracted extensive attention. Therefore, researchers have designed and synthesized various types of separation membrane, such as metal organic framework (MOF), covalent organic framework (COF), polymer of intrinsic micro-porosity (PIM) and mixed matrix membranes. Some substituted polyacetylenes have distorted structures and formed micropores due to the existence of rigid main chains and substituted side groups, which can be applied to the field of membrane separation. This article mainly introduces the development and application of substituted polyacetylenes in gas separation and liquid separation based on membrane technology.

Membrane-Based Technologies for Post-Combustion CO2 Capture from Flue Gases: Recent Progress in Commonly Employed Membrane Materials

“…Among various membrane materials, polymeric materials present inherent advantages in terms of cost, variety and ease of processing. Polymers, including polyacety-lene [73], polyaniline [74], polyamides [75], polyimides [76], polyetherimides [77], polycarbonates [78], poly(phenylene oxides) [79], poly(ethylene oxides) [80], polysulfones [81] and cellulose acetate [82], have been examined for post-combustion CO 2 capture. Generally, the solution-diffusion transport mechanism and the facilitated transport mechanism are broadly adopted as the principal mechanisms when the design of new polymers is considered.…”