Article
  • Inverse Emulsion Copolymerization of Acrylamide-Acrylonitrile
  • Kim KU, Lee HY, Park BH
  • 아크릴 아미드-아크릴로니트릴의 역유화공중합
  • 김광웅, 이화영, 박봉현
Abstract
Inverse emulsion copolymerization of acrylamide (AM) and acrylonitrile (AN) was studied with a semi-batch process. ,Molecular weight of copolymers prepared under was measured Correlating molecular weight obtained by lightscattering method with intrinsic viscosity of copolymer solution in DMF, a Mark-Houwink relationship was derived. Effects of reaction temperature and concentrations of initiator, reducing agent and emulsifier on molecular weight were also studied. Results exhibited a large deviation from Smith-Ewart''s ideal emulsion polymerization mechanism, probably due to coexistence of emulsion and solution polymerization caused by different solubilities of AM and AN in water and solvent. The relatively broad particle size distribution indirectly supports the coexistence of two polymerization schemes.

아크릴아미드(AM)와 아크릴로니트릴(AN)의 역유화공중합을 반회분식공정으로 조사하여 여러 반응조건에 따른 공중합체의 분자량을 측정하였다. 공중합체의 분자량을 광산란법에 의해 측정하고, DMF에 용해시켜 측정한 고유점도로부터 Mark-Houwink 관계식을 유도하였다. 반응온도, 개시제, 환원제, 유화제의 농도가 분자량에 미치는 영향도 고찰하였다. 본 연구결과는 Smith-Ewart의 이상적인 유화중합기구에서 많이 벗어나고 있음을 보여주는데 AM과 AN의 물과 용매에 대한 용해도의 차이 때문에 유화중합과 용액중합이 공존하고 있다고 사료된다. 이것은 비교적 넓은 입자분포를 초래하는 원인이라고 판단된다.

Keywords:

  • 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

  • 1982; 6(3): 197-204

    Published online Jun 25, 1982

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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