Article
  • A Study on the Synthesis of Opaque Polymer by Sequential Emulsion Polymerization 1. Preparation of Core Polymer
  • Park CM, Kang EY, In SS, Park TS, Kim KU
  • 단계적 유화중합에 의한 Opaque Polymer의 합성에 관한 연구 : 1. Core Polymer 제조
  • 박찬만, 강은영, 임승순, 박태석, 김광웅
Abstract
Opaque polymer particles with encapsulated air voids were produced by sequential emulsion polymerization. Methyl methacrylate and methacrylic acid were used as basic monomers. In order to have sufficient opacity, the core and shell have to comprise at least about 2owt % and 5wt % acid monomer to the total amount of monomers, respectively. The shell polymer has to be neutralized with an equivalent amount of ammonium hydroxide and heated to 95℃ for three hours.

Methyl methacrylate, methacrylic acid를 기본 단량체로 사용하고 sequential emulsion 중합에 의해 입자내 void가 포함된 opaque polymer 입자를 합성하였다. 충분한 불투명성을 갖기 위해서 core는 전체 단량체중 20wt%이상의 acid 단량체가 포함되어야 하며, shell은 전체 단량체중 5wt%이상의 acid 단량체가 포함되어야 한다. 또한 shell polymer는 암모니아수로 95℃에서 3시간 이상 팽윤시켜야 한다.

References
  • 1. Hislop RW, Mcginley PL, J. Coat. Technol., 50, 69 (1978)
  •  
  • 2. Goldsbrough K, Simpson LA, Tunstall DF, Prog. Org. Coat., 10, 35 (1982)
  •  
  • 3. Seiner JA, Ind. Eng. Chem. Prod. Res. Dev., 17, 302 (1978)
  •  
  • 4. Nyi KAustralian OCCA Proc. News, 19, 4 (1982)
  •  
  • 5. Chung-Li Y, Goodwin JW, Ottewill RH, Prog. Colloid. Polym. Sci., 60, 173 (1976)
  •  
  • 6. Gibbs W, J. Macromol. Sci.-Chem., A7, 647 (1973)
  •  
  • 7. Hearn J, Wilkinson MC, Goodall AR, Chainey M, J. Polym. Sci. A: Polym. Chem., 23, 1869 (1985)
  •  
  • 8. Ceska GW, J. Appl. Polym. Sci., 18, 427 (1974)
  •  
  • 9. Park JMPh.D. Thesis, Lehigh University (1990)
  •  
  • 10. Lock MR, El-Aasser MS, Klein A, Vanderhoff JW, J. Appl. Polym. Sci., 36, 2129 (1990)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1991; 15(4): 439-446

    Published online Aug 25, 1991