Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Grafting of Poly(methacrylic acid) onto Polyethylene Powders via Photoinitiated Reactions and Characterization of PE-g-PMA

광개시 반응을 통한 폴리에틸렌 분말에의 폴리메타크릴산 그라프팅과 PE-g-PMA의 특성 분석

  • Kim, Ji Hoon (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Kim, Young Ho (Department of Organic Materials and Fiber Engineering, Soongsil University)
  • 김지훈 (숭실대학교 유기신소재.파이버공학과) ;
  • 김영호 (숭실대학교 유기신소재.파이버공학과)
  • Received : 2014.08.22
  • Accepted : 2014.10.05
  • Published : 2014.10.31
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Abstract

Grafting poly(methacrylic acid) (PMA) onto polyethylene (PE) powders using a photoinitiated reaction with UV irradiation was carried out, and the effects of PMA grafting on the thermal and surface properties of PE were characterized. The PE-g-PMA powders obtained were analyzed by FT-IR spectroscopy, zeta size analysis, thermogravimetric analysis, and differential scanning calorimetry. PE-g-PMA films were prepared by melt pressing the powders and then analyzed by scanning electron microscopy and contact angle measurement. The hydrophilicity of the PE-g-PMA films increased on increasing the degree of grafting. The heat of melt crystallization, heat of melting, melt-crystallization temperature, and melting temperature of PE-g-PMA decreased with increase in the degree of grafting. This was attributed to the PMA chains hindering the crystallization of PE.

Keywords

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