Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Surface-modified Cellulose Nanofibril Surfactants for Stabilizing Oil-in-Water Emulsions and Producing Polymeric Particles

표면 개질된 나노피브릴화 셀룰로오스를 이용한 에멀젼 안정화 및 고분자 입자 제조

  • Kim, Bo-Young (Electronic Convergence Materials & Device Research Center, Korea Electronics Technology Institute) ;
  • Moon, Jiyeon (Nano Materials & Component Research Center, Korea Electronics Technology Institute) ;
  • Yoo, Myong Jae (Electronic Convergence Materials & Device Research Center, Korea Electronics Technology Institute) ;
  • Kim, Seonmin (Nano Materials & Component Research Center, Korea Electronics Technology Institute) ;
  • Kim, Jeongah (Electronic Convergence Materials & Device Research Center, Korea Electronics Technology Institute) ;
  • Yang, Hyunseung (Electronic Convergence Materials & Device Research Center, Korea Electronics Technology Institute)
  • 김보영 (한국전자기술연구원 융복합전자소재연구센터) ;
  • 문지연 (한국전자기술연구원 나노융합연구센터) ;
  • 유명재 (한국전자기술연구원 융복합전자소재연구센터) ;
  • 김선민 (한국전자기술연구원 나노융합연구센터) ;
  • 김정아 (한국전자기술연구원 융복합전자소재연구센터) ;
  • 양현승 (한국전자기술연구원 융복합전자소재연구센터)
  • Received : 2020.12.23
  • Accepted : 2021.01.19
  • Published : 2021.02.10
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Abstract

In this work, the surface of hydrophilic cellulose nanofibrils (CNFs) was modified precisely by varying amounts of cetyltrimethylammonium bromide (CTAB) to produce CNF-based particle surfactants. We found that a critical CTAB density was required to generate amphiphilic CTAB-grafted CNF (CNF-CTAB). Compared to pristine CNF, CNF-CTAB was highly efficient at stabilizing oil-in-water Pickering emulsions. To evaluate their effectiveness as particle surfactants, the surface coverage of oil-in-water emulsion droplets was determined by changing the CNF-CTAB concentration in the aqueous phase. Furthermore, styrene-in-water stabilized by CNF-CTAB surfactants was thermally polymerized to produce CNF-stabilized polystyrene (PS) particles, offering a great potential for various applications including pharmaceuticals, cosmetics, and petrochemicals.

Keywords

References

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