Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Tailoring Surface Wetness of Cellulose by Surface Initiate Polymerization

표면개시중합법을 이용한 셀룰로스 필터지의 젖음성 조절

  • Yang, Yu-Mi (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Choi, Hyung-Min (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Kwark, Young-Je (Department of Organic Materials and Fiber Engineering, Soongsil University)
  • 양유미 (숭실대학교 유기신소재.파이버공학과) ;
  • 최형민 (숭실대학교 유기신소재.파이버공학과) ;
  • 곽영제 (숭실대학교 유기신소재.파이버공학과)
  • Published : 2008.10.31
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Abstract

The hydrophilic/hydrophobic nature of the cellulose could be tuned by introducing a polymer layer onto the surface using surface initiated polymerization techniques. Initiating groups for the polymerization could be immobilized by reacting 2-bromoisobutyrylbromide with the hydroxyl groups on cellulose. Thereafter, using atom transfer radical polymerization the modified cellulose was grafted with hydrophobic poly(methyl acrylate) (PMA), or with poly(N-isopropyl acrylamide) (PNIPAAm) which have been known for having lower critical solution temperature. We characterized the modified surface of cellulose using SEM-EDS and XPS, and FT-IR. The contact angles of the polymer grafted cellulose showed that the hydrophilic nature of cellulose surface was changed to hydrophobic after being grafted with PMA and to temperature dependent hydrophilic/hydrophobic with PNIPAAm.

Keywords

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