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Effect of Initiator on Performance of Polyvinylacetate as Emulsion Adhesive

  • Received : 2015.10.15
  • Accepted : 2015.11.02
  • Published : 2015.12.31

Abstract

Polyvinylacetate (PVAc) was prepared using thermal initiation and redox initiation via emulsion polymerization at $80^{\circ}C$. The polymerization conditions had a significant effect on the properties of the synthesized PVAc. When hydrogen peroxide and tartaric acid as the initiator for redox polymerization were used, the synthesized PVAc had a low molecular weight. In comparison with thermal polymerization, smaller PVAc particles were formed during the redox polymerization due to relatively faster polymerization rate, which in turn resulted in improved adhesion property. It is considered that the rapid generation of smaller particles induces the formation of a large surface area.

Keywords

polyvinylacetate;thermal initiation;redox initiation;emulsion polymerization;adhesive

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