• Graft Copolymerization onto Reactive Polyolefin
  • Lee DH, Kim TW, Park JR, Park IH
  • 반응성 폴리올레핀의 Graft 공중합
  • 이동호, 김태욱, 박준려, 박인하
Abstract
For the graft copolymerization of vinyl monomers onto reactive polyolefin (RPO) which is copolymer of propylene and nonconjugated diane, the graft yield increased with initiator and monomer concentration. With increasing the reaction time, the graft yield increased to become constant. The change of graft efficiency exhibited a similar tendency to that of graft yield. For the study of blends of isotactic polypropylene (iPP) with polystyrene (PS), poly(methyl methacrylate) (PMMA) or Nylon 6 by using the graft copolymer as compatibilizer, it was found that iPP/RPO-g-PS/PS. iPP/RPO-g-PMMA/PMMA and iPP/RPO-g-poly(acrylic acid) (PAA)/Nylon 6 blend systems exhibited improved compatibility. But, in iPP/RPO-g-PAA/PMMA blend system, the graft copolymer was not effective compatibilizer.

프로필렌과 비공액디엔의 공중합체인 반웅성 폴리올레핀(RPO)에 비닐단량체를 graft공중합할 경우에, 개시제 및 단위체의 농도가 증가함에 따라 graft율이 증가하였으며, 반웅시간에 따라서는 graft율이 증가하다가 거의 일정하게 되었다 또한 graft효율의 변화도 유사한 경향을 나타내었다. Graft 공중합체를 상용화제로 사용한 이소탁틱 폴리프로필렌 (iPP)과 폴리스티렌 (PS), 폴리테틸메타크릴레이츠(PMMA) 및 나일론 6과의 블렌드 실험에서 iPP/RPO-g-PS/PS, iPP/RPO-g-PMMA/PMMA 및 iPP/RPO-g-폴리아크릴산/나일론 6 등의 계에서는 상용성이 향상되었으나, iPP/RPO-g-PAA/PMMA 계에서는 graft 공중합체의 상용화제 효과를 볼 수 없었다.

Keywords: reactive polyolefin; vinyl monomer; graft copolymerization; compatibilizer; blend

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This Article

  • 1997; 21(6): 903-912

    Published online Nov 25, 1997