Article
  • Preparation of Water-soluble Polydithiocarbonates and Effective Copper Ion Isolation Through Polymer Binding
  • Minjin Son and Jung Yun Do

  • Department of Chemistry Education, Pusan National University, 2, Busandaehak-ro, 63 Beon-gil, Geumjeong-gu, Busan 46241, Korea

  • 수용성 싸이오카보네이트 고분자 제조와 구리이온 결합 연구
  • 손민진 · 도정윤

  • 부산대학교 화학교육과

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

Water-solublepoly(dithiocarbonate)s were prepared through cationic ring-opening polymerization of 5-membered cyclic dithiocarbonates containing hydrophilic substituents, such as alcohol, triethyleneglycol, and morpholine. The morpholine attached monomer underwent polymerization in CF3CO2H solvent, leading to in-situ protonation of an amine moiety as a catalyst scavenger. When the prepared polymers were exposed to an aqueous copper(II) ion solution, the concentration of free copper ion was measured by UV-vis absorption spectroscopy after adding a rhodamine chemosensor. A characteristic absorption of a copper-rhodamine complex at 560 nm was weakened with polymer addition, indicating consumption of free copper ion through the formation of copper-polymer complex. The absorption intensity of 0.5 μm copper solution was reduced to 1/4 in the presence of a 200 ppm polymer.


수용성 싸이오카보네이트 고분자를 합성하기 위해 알콜기, 트리에틸렌글리콜, morpholine이 결합된 단분자를 합성하고 양이온 개환고분자 반응을 진행하였다. Morpholine이 결합된 단분자는 CF3CO2H 용매조건에서 아민의 중합 방해 기능을 억제시켜 고분자로 전환될 수 있었다. 구리(II) 이온 수용액에 합성된 고분자를 첨가하여 구리이온의 농도 변화를 관찰하였다. 구리이온의 농도는 첨가된 로다민 화학센서의 흡광도로 결정하였다. 구리와 로다민센서의 혼합 몰비를 1/2로 유지된 마이크로몰의 묽은 용액에서 흡광도 변화를 관찰하였다. 고분자 첨가에 따라 흡광도 감소가 일어났고 구리-고분자 결합 효과로 설명되었다. 0.5 μM의 구리이온은 200 ppm의 고분자를 첨가할 때 560 nm에서 흡광도가 약 1/4로 줄어들었다.


Keywords: hydrophilic polythiocarbonate, copper-polymer binding, water-soluble rhodamine copper sensor, ring-opening polymerization.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2023; 47(6): 744-749

    Published online Nov 25, 2023

  • 10.7317/pk.2023.47.6.744
  • Received on Jul 18, 2023
  • Revised on Aug 29, 2023
  • Accepted on Sep 1, 2023

Correspondence to

  • Jung Yun Do
  • Department of Chemistry Education, Pusan National University, 2, Busandaehak-ro, 63 Beon-gil, Geumjeong-gu, Busan 46241, Korea

  • E-mail: jydo@pusan.ac.kr