Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Effect of protective colloid on the synthesis of Poly(Vinyl acetate-co-Ethyl acrylate)

Poly(VAc-co-EA) 공중합체 제조에 있어 보호콜로이드의 영향에 관한 연구

  • Kim, Nam-Seok (Department of Engineering in Energy and Applied Chemistry, Silla University) ;
  • Kim, Sung-Hoon (Department of Engineering in Energy and Applied Chemistry, Silla University)
  • 김남석 (신라대학교 공과대학 에너지응용화학과) ;
  • 김성훈 (신라대학교 공과대학 에너지응용화학과)
  • Received : 2010.05.04
  • Accepted : 2010.06.18
  • Published : 2010.06.30
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Abstract

Polyvinyl acetate (PVAc) prepared by emulsion polymerization has broad applications for additive such as paint binder, adhesive for wood and paper due to its low glass transition temperature which help to plasticize substrate resins. Since emulsion polymerization has a disadvantage that surfactant and ionic initiator degrade properties of the product polymer, poly (vinyl acetate-eo-ethyl acrylate) (VAc-EA) was synthesized using potassium persulfate as catalyst and polyvinylalcohol (PVA) as protective colloid to prevent the degradation. The copolymer latex product was internally plasticized and has enhanced adhesion, water resistance during VAc-EA emulsion polymerization. No coagulation and complete conversion occur with the reactant mixture of 10 mmol/L potassium persulfate, 10 mmol/L poly ( vinyl alcohol) (PVA 17). As the concentrations of PVA increase, the viscosity becomes increase.

Keywords

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