Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Preparation of Valuable Compounds Encapsulated Polymer Nanoparticles with High Payload Using Core-crosslinked Amphiphilic Polymer Nanoparticles

코아 가교 양친성 고분자 나노입자를 이용한 고함량 유용 약물 담지 고분자 나노입자 제조

  • Kim, Nahae (Department of Materials engineering, Kangwon National University) ;
  • Kim, Juyoung (Department of Materials engineering, Kangwon National University)
  • 김나혜 (강원대학교 기능소재공학과) ;
  • 김주영 (강원대학교 기능소재공학과)
  • Received : 2015.08.30
  • Accepted : 2015.11.19
  • Published : 2016.02.10
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Abstract

In this study, core-crosslinked amphiphilic polymer (CCAP) nanoparticles prepared using a reactive amphiphilic polymer precursor (RARP) were used for preparing some valuable compounds encapsulated polymer nanoparticles with high payload through nanoprecipitation process. Various solvents (acetone, ethanol, and THF) having different polarity and CCAP nanoparticles prepared using different amphiphilicity were used for the preparation of ${\alpha}$-tocopherol encapsulated polymer nanoparticles to investigate their effects on the encapsulation efficiency, payload, nanoparticle size, and stability. CCAP dissolved in hydrophobic solvent, THF, could form ${\alpha}$-tocopherol encapsulated polymer nanoparticles dispersed in water with the high payload of ${\alpha}$-tocopherol and encapsulation efficiency. Because of their physically and chemically robust nano-structure originated from crosslinking of the hydrophobic core, CCAP nanoparticles could encapsulate ${\alpha}$-tocopherol with the high payload (33 wt%) and encapsulation efficiency (97%), and form 70 nm-sized stable nanoparticles in water.

본 연구에서는 반응성 비닐기를 가지고 있는 반응성 양친성 고분자 전구체(Reactive Amphiphilic Reactive Polymer Precursor) (RARP)를 이용하여 제조된 소수성 세그먼트들이 가교된 코아 가교 양친성 고분자(Core-crosslinked Amphiphilic Polymer) (CCAP) 나노입자와 나노침전법을 사용하여서 소수성 유용물질을 고함량으로 담지할 수 있는 새로운 공정을 제안하였다. 극성이 각기 다른 유기용매(에탄올, 아세톤, 테트라하이드로퓨란(THF))들과 소수성 세그먼트 분자량이 다른 CCAP를 사용하여서, 모델 유용 약물인 ${\alpha}$-tocopherol의 담지 효율, 담지량 및 약물 담지 나노입자의 크기와 안정성 변화를 조사하였다. 소수성 세그먼트 분자량이 큰 CCAP와 소수성 용매인 THF를 용매로 사용한 경우에 가장 높은 유용 약물 담지량, 담지 효율을 나타내는 안정한 나노입자가 형성이 되었다. 즉 CCAP 나노입자들의 물리적 화학적으로 견고한 나노 구조로 인해서 33 wt%의 높은 담지량과 97% 이상의 담지 효율을 가지면서 물속에서 70 nm의 크기의 안정한 유용 약물 담지 고분자 나노입자를 제조할 수 있었다.

Keywords

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