Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Synthesis and Characterization of Water Repellent Materials Containing 2-(Perfluorooctyl) Ethyl Acrylate and m-Isopropenyl-α, α-Dimethylbenzyl Isocyanate

2-(Perfluorooctyl) Ethyl Acrylate (PFOEA) 및 m-Isopropenyl-α, α-Dimethylbenzyl Isocyanate (TMI)가 함유된 발수체 합성 및 특성연구

  • Kang, Young Taec (Department of Polymer Science and Engineering, Pusan National University) ;
  • Kwak, Eun Mi (Department of Polymer Science and Engineering, Pusan National University) ;
  • Chung, Ildoo (Department of Polymer Science and Engineering, Pusan National University)
  • 강영택 (부산대학교 고분자공학과) ;
  • 곽은미 (부산대학교 고분자공학과) ;
  • 정일두 (부산대학교 고분자공학과)
  • Received : 2014.11.17
  • Accepted : 2014.12.05
  • Published : 2014.12.30
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Abstract

A series of terpolymers based on stearyl methacrylate (SMA), n-methyol acrylamide (n-MAM), and 2-(perfluorooctyl) ethyl acrylate (PFOEA) were synthesized by changing PFOEA contents up to 8 wt% in order to obtain optimal water-repellent properties. In addition, various contents of m-isopropenyl-${\alpha}$,${\alpha}^{\prime}$-dimethylbenzyl isocyanate (TMI) from 1 to 4 wt% were added to the above terpolymers with 4 wt% of PFOEA content. The emulsion polymerization was carried out using tridecyl alcohol (EO)7 (TDA-7) as a nonionic surfactant, alkyl dimethyl amine derivatives (ADAD) as a cationic surfactant, and 2,2'-azobis(2-amidinopropane dihydrochoride) (AAPDL) as an initiator. The synthesized copolymers were characterized by FT-IR spectroscopies, contact angle, surface energy, and water-repellency. Surface and thermal properties were analyzed by SEM, TGA, and DSC. It was found that water repellency increased with increasing the contents of PFOEA and TMI.

이상적인 내발수 특성을 얻기 위해 유화중합을 이용하여 n-methyol acrylamide (n-MAM)와 stearyl methacrylate (SMA)의 단량체에 기능성 단량체인 PFOEA의 함량(0-8 wt%)에 따른 공중합체를 합성하였고, 추가적으로 2-(perfluorooctyl) ethyl acrylate (PFOEA) 함량이 4 wt%인 조성에 m-isopropenyl-${\alpha}$,${\alpha}^{\prime}$-dimethylbenzyl isocyanate (TMI)의 함량(1~4 wt%)을 첨가한 공중합체를 합성하였다. 유화중합을 위해 비이온 유화제인 tridecyl alcohol (TDA-7), 양이온유화제인 alkyl dimethyl amine derivatives(ADAD)를 사용하였고 개시제로는 2,2'-azobis (2-amidinopropane dihydrochoride) (AAPDL)을 사용하였다. 합성된 공중합체에 대해서 FT-IR spectra를 이용하여 구조분석을 하였고 표면특성 분석을 위해 접촉각, 표면에너지, 발수도 그리고 SEM을 측정하였으며, TGA와 DSC를 사용하여 열적 특성을 확인하였다. PFOEA와 TMI의 특정 함량에서 우수한 발수도와 높은 열적 특성을 보이는 공중합체가 합성됨을 알 수 있었다.

Keywords

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