화학공학소재연구정보센터
Polymer(Korea), Vol.44, No.1, 6-12, January, 2020
아크릴산을 이용한 폴리옥시에틸렌계 반응성 계면활성제의 합성 및 수성 점착제 특성
Synthesis of Polyoxyethylene Reactive Surfactant Using Acrylic Acid and Properties of Water-based Adhesive
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초록
실험에서 반응성 계면활성제는 비이온성 계면활성제인 polyoxyethylene lauryl ether(C12POE23), polyoxy-ethylene stearyl ether(C18POE20) 및 아크릴산을 사용하여 합성하였다. 합성한 계면활성제는 FTIR 및 1H NMR에 의해 확인하였으며, 물성은 임계미셀농도와 유화력을 측정하였다. 합성한 반응성 계면활성제의 표면장력 및 임계미셀농도는 polyoxyethylene lauryl ether acrylate(C12POE23-AA)에 대해 1.1×10-4 mol/L 및 37.85 dyne/cm이고 polyoxyethylene stearyl ether acrylate(C18POE20-AA)에 대해서는 9.6×10-5 mol/L, 39.88 dyne/cm이었다. 본 연구에서 합성된 반응성 계면활성제를 점착제의 유화 중합에서 유화제로 사용하여 그 물성을 평가하였다. 고형분 함량은 57.2~57.5%의 범위에서 측정되었다. 초기 접착의 경우, 반응성 유화제로 ??제조된 C12POE23-AA는 #11으로 측정되었고, C18POE20-AA는 #9이다. 반응성 유화제를 이용한 수성 점착제는 피부용 점착제로서 응용될 것이다
In this experiment, reactive surfactants were synthesized by using nonionic surfactants such as polyoxyethylene lauryl ether (C12POE23), polyoxyethylene stearyl ether (C18POE20) and acrylic acid. The synthesized surfactant was confirmed by FTIR and 1H NMR. In addition, its surface tension and emulsifying properties were estimated. The surface tension and critical micelle concentration of the synthesized reactive surfactant were 1.1×10-4 mol/L and 37.85 dyne/cm, respectively, for polyoxyethylene lauryl ether acrylate (C12POE23-AA) and 9.6×10-5 mol/L and 39.88 dyne/cm, respectively, for polyoxyethylene stearyl ether acrylate (C18POE20-AA). The synthesized reactive surfactant in this research was used as an emulsifier in emulsion polymerization of adhesives and its physical properties were evaluated. The solid content was measured in the range of 57.2~57.5%. In the case of initial adhesion, the C12POE23-AA and C18POE20-AA made with reactive emulsifier showed #11 and #9, respectively. Water-based adhesive using a reactive emulsifier will be applied as an adhesive for skin
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