Communication
  • Study of Polymer Miscibility by Space Charge Profiling Technique
  • Suh KS, Lee DS, Kang CG
  • 전하분포 측정기술을 이용한 고분자 블렌드의 상용성 연구
  • 서광석, 이대수, 강창균
Abstract
As a result of study on the charge formation using space charge profiling technique, it was found that the residual electron density decreases with increasing poly-caprolactone (PCL) content in polycarbonate (PC)/poly(styrene-co-acrylonitrile)(SAN)/polycaprolactone (PCL) blends. This feature was attributed that the PCL encourages the chemical interaction between PC and SAN at their interphase interface through which the electrons could move freely. It is speculated that the PCL acts as a bridge for electrons to hop. However, the crystallization of PCL and PCL-induced crystallization of PC enhances the trapping of electrons at the interface between amorphous and crystalline phases and thus the residual electron density increases at higher PCL content, i.e., higher than 20% of PCL in this particular case.

전하분포 측정장치를 이용한 전하축적 현상에 대한 연구결과, PC/SAN/PCL 블렌드의 상용성이 증가함에 따라 블렌드 내에 남아 있는 잔류전자량이 감소한다는 사실을 알았다. 이는 PCL 함량이 증가함으로서 PC/SAN 계면에서 PCL을 통한 결합이 이루어져, 전자가 자유롭게 이동할 수 있기 때문인 것으로 추정된다. 그러나 PCL 함량이 더욱 증가하여, 본 연구의 경우 20% 이상, PCL로 인한 결정화가 이루어지므로 전자가 비정질 ·결정질 계면에 다시 축적되어 잔류전자량이 많아진다는 것을 알았다.

Keywords: PC/SAN blend; polymer compatibility; space charge; profiling technique

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1995; 19(2): 254-258

    Published online Mar 25, 1995