Synthesis of 9-phenylcarbazole hyper-cross-linked polymers in different conditions and adsorption behavior for carbon dioxide

  1. Dandan Fang,
  2. Xiaodong Li,
  3. Meishuai ZouORCID Logo,
  4. Xiaoyan Guo and
  5. Aijuan Zhang

Submitting author affiliation: Beijing Institute of Technology, Beijing, China

Beilstein Arch. 2019, 201980.

Published 30 Jul 2019

  • Preprint


To systematically explore the effects of the synthesis conditions on the porosity of hyper-cross-linked polymers (HCPs), a series of 9-phenylcarbazole HCPs (P1-P11) have been made by changing the dosage of cross-linker, the reaction temperature, catalyst usage and solvent dosage. Fourier transform infrared spectroscopy is utilized to characterize the structure of the obtained polymers. The TG analysis shows a high thermal stability of the HCPs. More importantly, comparative studies on the porous properties reveals that: molar ration of cross-linker and building block is the main factor of BET specific surface area; Improving reaction temperature or the usage of catalyst could increase the total pore volume greatly but sacrifice part of BET specific surface area; Fortunately changing solvent dosage could remedy this situation, that is slightly changing solvent dosage could simultaneously obtain high surface area and high total pore volume. The BET specific surface areas of P3 is up to 769 m2g-1 with narrow pore size distribution and the CO2 adsorption capacity of P11 is up to 52.4 cm3g-1 (273 K/1.00 bar).

Keywords: 9-phenylcarbazole; carbon dioxide adsorption; microporous; hyper-cross-linked polymers; synthesis conditions

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Fang, D.; Li, X.; Zou, M.; Guo, X.; Zhang, A. Beilstein Arch. 2019, 201980. doi:10.3762/bxiv.2019.80.v1

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