Journal of the Society of Cosmetic Scientists of Korea (대한화장품학회지)

Society of Cosmetic Scientists of Korea (대한화장품학회)
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Structure Analysis of Liquid Crystal Emulsions Using X-ray Scattering Analysis

X선 산란분석법을 이용한 액정에멀젼 구조분석

  • Park, So Hyun (Department of Fine Chemistry, Cosmetic R&D center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology) ;
  • Kim, Su Ji (Cosmax R&I Center) ;
  • Noh, Min Joo (Cosmax R&I Center) ;
  • Lee, Jun Bae (Cosmax R&I Center) ;
  • Park, Soo Nam (Department of Fine Chemistry, Cosmetic R&D center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology)
  • 박소현 (서울과학기술대학교 정밀화학과 화장품종합기술연구소, 코스메틱 융.복합산업 지원 센터,) ;
  • 김수지 (코스맥스 R&I Center) ;
  • 노민주 (코스맥스 R&I Center) ;
  • 이준배 (코스맥스 R&I Center) ;
  • 박수남 (서울과학기술대학교 정밀화학과 화장품종합기술연구소, 코스메틱 융.복합산업 지원 센터,)
  • Received : 2016.09.06
  • Accepted : 2016.09.23
  • Published : 2016.09.30
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Abstract

In this study, we prepared liquid crystal emulsions composed of $C_{12-20}$ alkyl glucoside, $C_{14-22}$ alcohol, and behenyl alcohol and performed structure analysis using various analytical equipment. First, as an important characteristic of liquid crystal emulsions, maltese cross patterns and multi-layer structure were observed by a polarized microscope and cryo-SEM. Also, formation of liquid crystal phase was confirmed by DSC and multi-layer lamellar structure having an interlayer spacing approximately $305{\AA}$ was confirmed by small angle x-ray scattering (SAXS). The alkyl chain arrangement formed orthorhombic structure of a lamellar structure of the liquid crystal emulsion was confirmed by wide angle x-ray scattering (WAXS). These results suggest that information on the various physical properties obtained through the research of liquid crystal emulsion structure is expected to be widely used in cosmetics development in the future.

본 연구에서는 $C_{12-20}$ 알킬글루코사이드, $C_{14-22}$ 알코올 및 베헤닐알코올로 구성된 액정에멀젼을 제조하고 다양한 분석장비를 이용하여 구조분석을 실시하였다. 먼저 제조한 액정에멀젼을 편광현미경과 cryo-SEM을 이용하여 각각 액정에멀젼의 특징인 maltese cross 무늬와 다층 구조를 확인하였다. 또한, DSC를 이용하여 액정상 형성을 확인하였고, small angle x-ray scattering (SAXS) 분석을 통하여 약 $305{\AA}$의 층간 간격을 갖는 다층 라멜라 구조를 확인하였다. 한편, wide angle x-ray scattering (WAXS) 분석을 통해 제조된 액정에멀젼의 라멜라 구조를 이루고 있는 알킬 사슬 간 배열이 사방정계 구조로 되어 있음을 확인할 수 있었다. 액정에멀젼 구조 연구를 통해 얻어진 다양한 물성 정보는 향후 산업적으로 많이 이용될 것으로 기대된다.

Keywords

References

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