Porosity-Enhanced Polymers from Hyper-Cross-Linked Polymer Precursors

Research paper by Lei Ding, Hui Gao, Feifei Xie, Wenqing Li, Hua Bai, Lei Li

Indexed on: 25 Jan '17Published on: 24 Jan '17Published in: Macromolecules


Hyper-cross-linked polymers (HCPs) have aroused great interest because of their potential applications in adsorbing greenhouse gases and volatile organic compounds. However, the selection of raw materials and the postcontrol of the porosity of HCPs remain a challenge. Here, we developed new porosity-enhanced materials by chemically creating additional pores in polymer-based HCPs. The as-prepared material presents a high surface area (1201 m2 g–1), large microporous volume, and high chemical stability even in concentrated acid, thus demonstrating potential in gas capture and storage (CO2: 15.31 wt % at 273 K/1.0 bar; selectivity for CO2 against N2: 36.6; and large adsorption capacity for six organic vapors). This method of creating additional pores in polymer-based HCPs may open doors to the creation of novel porosity-enhanced materials suitable for high-performance adsorbents.

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