Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Modification and Properties of Polyolefin with Maleic Anhydride as a Functional Monomer

관능성 단량체로서 Maleic Anhydride를 이용한 Polyolefin의 개질 및 물성

  • Mo, Jong-Hun (Department of Polymer Engineering, Pukyong National University) ;
  • Lee, Jae-Seok (Department of Polymer Engineering, Pukyong National University) ;
  • Choi, Im-Cheol (Department of Polymer Engineering, Pukyong National University) ;
  • Lee, Won-Kee (Department of Polymer Engineering, Pukyong National University) ;
  • Park, Sang-Bo (Department of Polymer Engineering, Pukyong National University) ;
  • Min, Seong-Kee (Department of Polymer Engineering, Pukyong National University) ;
  • Park, Chan-Young (Department of Polymer Engineering, Pukyong National University)
  • 모종헌 (부경대학교 공과대학 고분자공학과) ;
  • 이재석 (부경대학교 공과대학 고분자공학과) ;
  • 최임철 (부경대학교 공과대학 고분자공학과) ;
  • 이원기 (부경대학교 공과대학 고분자공학과) ;
  • 박상보 (부경대학교 공과대학 고분자공학과) ;
  • 민성기 (부경대학교 공과대학 고분자공학과) ;
  • 박찬영 (부경대학교 공과대학 고분자공학과)
  • Received : 2012.04.02
  • Accepted : 2012.04.26
  • Published : 2012.06.30
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Abstract

Surface modification of macromolecules renders a progressive and favorable method to enhance the properties of polymeric materials and improves conductivity, wettability, stability, adhesion, antibacterial properties, etc. of polymeric surfaces without deterioration of the polymer bulk properties. Polyolefins such as polyethylene and polypropylene were grafted with maleic anhydride(MAH) as a functional monomer in solution. Evidence for grafting was shown with FTIR measurement. The grafting ratio was determined from chemical titration. The higher MAH loading, the lower contact angle(${\theta}$) was obtained. With the increasing content of MAH, melting temperature($T_m$) of maleic anhydride grafted polymer decreased while decomposition temperature($T_d$) of maleic anhydride grafted polymer increased.

거대분자의 표면개질은 고분자재료의 물성을 향상시키기 위한 점진적이고 바람직한 방안을 제공하며 고분자의 주요 물성을 손상시키지 않고 고분자 표면의 전도도, 젖음성, 안정성, 접착 및 항박테리아성 등을 개선시킨다. PE 또는 PP 등의 polyolefin을 관능성 단량체로서 MAH와 용액상에서 그래프트시켰다. FTIR측정을 통하여 그래프팅이 일어났음을 확인하였다. 그래프팅율은 화학적정에 의하여 결정하였다. MAH량이 많아질수록 접촉각은 낮은 값을 얻었다. 또한 MAH량이 증가함에 따라 polyolefin-g-MAH의 융점($T_m$)은 감소하는 한편 분해온도($T_d$)는 증가하는 경향을 보였다.

Keywords

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