Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Grafting of MMA onto MCC through free radical method and its application to all natural cellulose composite film preparation

Microcrystalline cellulose에 자유 라디칼을 이용한 methyl methacrylate의 그래프팅 반응과 이를 이용한 천연복합필름의 제조

  • Lee, Soo (Dept. of Chemical Engineering, Changwon National University) ;
  • Park, Sang-Hee (Dept. of Chemical Engineering, Changwon National University) ;
  • Jin, Seok-Hwan (Dept. of Chemical Engineering, Changwon National University) ;
  • Lee, Sun-Young (Dept. of Environmental Material Engineering, Korea Forest Research Institute)
  • 이수 (국립창원대학교 화공시스템공학과) ;
  • 박상희 (국립창원대학교 화공시스템공학과) ;
  • 진석환 (국립창원대학교 화공시스템공학과) ;
  • 이선영 (국립산림과학원 환경소재공학과)
  • Published : 2008.12.31
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Abstract

Methyl methacrylate(MMA) was grafted onto microcrystalline cellulose(MCC) with ceric ammonium nitrate(CAN) as a redox initiator at the various conditions. The cellulose triacetate(CTA) composite films added MCC and MMA-grafted MCC powders were prepared on a glass plate. The graft yield(GY) and graft efficiency(GE) of the grafted MCC were calculated with the simple equations by the weight balance method. The double bond of C=O on the grafted MCC surfaces was confirmed by the fourier transform infrared spectroscopy with attenuated total reflection(FT-IT ATR) spectrophotometer. After grafting, the degree of crystallinity of cellulose powders was decresed by judging from x-ray diffraction(XRD) data. Scanning electron microscope(SEM) photos showed the only solvent and CAN solution could change the roughness of MCC powders and the effect of powder dispersions in composite matrix. The tensile strength of MCC/CTA composite films was decreased with increase of MCC powder contents. When 5% grafted MCC was added, the tensile strength of grafted MCC/CTA composite films was increased from 82.3 MPa to 97.2 MPa. The thermal property of powders was also analyzed by the thermogravimetric analysis(TGA).

Keywords

References

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