Article
  • Synthesis of New Conjugated Microporous Polymers via Copper-catalyzed Click Reaction and Their CO2 Capture Ability
  • Jungwon Park and Chang Yeon Lee

  • Department of Energy and Chemical Engineering, Incheon National University, Incheon 22012, Korea

  • 구리 촉매화 클릭 반응을 통한 새로운 공액 미세 다공성 고분자의 합성 및 이산화탄소 포집 능력
  • 박정원 · 이창연

  • 인천대학교 에너지화학공학과

Abstract

In this study, conjugated microporous polymer, CMP-1 and CMP-2, were synthesized via the copper-catalyzed click reaction between 1,3,6,8-tetraethynylpyrene(1) and 1,4-diazidobenzene(2) or 4,4'-diazidobiphenyl(3). The obtained polymers were characterized by FTIR and solid state 13C NMR, and their surface area and carbon dioxide adsorption capacities were measured by N2-adsorption/desorption isotherms and CO2 adsorption isotherms, respectively. The BET surface area was increased and the pore size was decreased in the CMP-2 which is originated from the monomer 3 having a longer molecular length. CMP-1 and CMP-2 exhibited similar CO2 adsorption capacities at 298 K, 1 bar but CMP-2 displayed superior CO2 adsorption ability compared with CMP-1 at 273 K. The enhanced CO2 adsorption ability of CMP-2 can be attributed to its high surface areas and appropriate pore diameter to capture CO2 molecules.


본 연구에서는 1,3,6,8-tetraethynylpyrene(1)과 azido 그룹을 포함하는 1,4-diazidobenzene(2), 4.4'-diazidobiphenyl(3)간의 클릭 반응을 통하여 공액 미세기공 고분자, CMP-1과 CMP-2를 합성하였다. 합성된 폴리머들은 FTIR과 고체상 13C NMR을 통해 그들의 구조를 분석하였고, N2-흡탈착 등온선 및 CO2 흡착 등온선을 통해 표면적 및 이산화탄소 흡착 능력을 측정하였다. 분자의 길이가 더 긴 단량체 3으로 합성된 CMP-2에서 BET 표면적이 증가되고 기공크기가 감소되는 것이 관찰되었으며 이산화탄소 흡착 결과 298 K에서는 CMP-1과 CMP-2가 비슷한 흡착량을 보였으나 273 K에서는 CMP-2의 흡착량이 CMP-1에 비해 약 1.5배 증가됨이 관찰되었다. CMP-2의 우월한 이산화탄소 흡착성능은 높은 표면적과 이산화탄소 흡착에 적합한 0.4~0.8 nm의 미세 기공의 존재에 기인한다.


Keywords: CO2 capture, conjugated microporous polymer, click-reaction, metal-organic frameworks, pore size

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2018; 42(3): 371-376

    Published online May 25, 2018

  • 10.7317/pk.2018.42.3.371
  • Received on Aug 28, 2017
  • Revised on Nov 17, 2017
  • Accepted on Nov 29, 2017

Correspondence to

  • Chang Yeon Lee
  • Department of Energy and Chemical Engineering, Incheon National University, Incheon 22012, Korea

  • E-mail: cylee@inu.ac.kr