Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Characteristics of Polyimide-silica Hybrid Materials Prepared from Alkoxide Precursor Using Sol-gel Process

졸-겔법을 이용하여 알콕사이드 전구체로부터 합성된 Polyimide-silica 혼성체의 특성

  • Kim, Byoung-Woo (Department of Inorganic Materials Engineering, Pusan National University) ;
  • Lee, Sung-Hwan (Department of Inorganic Materials Engineering, Pusan National University) ;
  • Kim, Sung-Wan (Department of Inorganic Materials Engineering, Pusan National University) ;
  • Park, Jae-Hyun (Department of Inorganic Materials Engineering, Pusan National University) ;
  • Kim, Jun-Ho (Division of Chemical Engineering, Pukyung National University) ;
  • Park, Seong-Soo (Division of Chemical Engineering, Pukyung National University) ;
  • Park, Hee-Chan (Department of Inorganic Materials Engineering, Pusan National University)
  • 김병우 (부산대학교 무기재료공학과) ;
  • 이성환 (부산대학교 무기재료공학과) ;
  • 김성완 (부산대학교 무기재료공학과) ;
  • 박재현 (부산대학교 무기재료공학과) ;
  • 김준호 (부경대학교 화학공학부) ;
  • 박성수 (부경대학교 화학공학부) ;
  • 박희찬 (부산대학교 무기재료공학과)
  • Published : 2002.01.01
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Abstract

Polyimide/silica(PI/silica) hybrid materials having physical or chemical bonds between the PI and silica network were prepared using sol-gel process through hydrolysis and polycondensation of tetraethoxysilane with the polyamic Acid(PAA) or end-capped PAA solution. PAA solution was synthesized by ring opening reaction of pyromellitic dianhydride and oxydianiline monomers in dimethyl acetamide solution. End-capped PAA solution was synthesized by the addition of 3-aminopropyltriethoxysilane in PAA solution. PI/silica hybrid samples were characterized by infrared spectroscopy, differential thermogravimetry, X-ray diffractometry, scanning electron microscopy, and tensile tester. It has been demonstrated that the properties of hybrid samples were affected by the silica content and the bond type between PI and silica.

Polyimide와 silica에 물리적 또는 화학적으로 결합된 Polyimide/silica(PI/silica) 혼성체들을 졸-겔법을 통하여 Polyamic Acid(PAA) 또는 end-capped PAA 용액에 tetraethoxysilane을 가수 분해 및 축 중합시켜서 제조하였다. PAA 용액은 dimethylacetamide 용액 내에서 pyromellitic dianhydride와 oxydianiline 단량체들을 개환 반응으로 합성하였다. End-capped PAA 용액은 PAA 용액에 3-aminopropyltriethoxysilane을 첨가하여 제조하였다. 적외선 분광기, 시차 열분석기, X-선 회절 분석기, 주사 전자현미경 및 인장 강도 시험기를 통하여 PI/silica 혼성체 시편들의 특성을 분석하였다. 혼성체 시편들의 물성은 PI와 silica간의 결합형 및 silica의 함량에 의해 영향을 받는다는 것을 확인하였다.

Keywords

References

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