Characterization and Solution Behavior of Polyethylene-based Ionomer Particles in Water

물에서의 폴리에틸렌계 아이오노머 입자 특성과 용액 거동

  • Yeo, Sang Ihn (Department of Chemistry Education, Seoul National University) ;
  • Woo, Kyu Whan (Department of Chemistry Education, Seoul National University)
  • 여상인 (서울대학교 화학교육과) ;
  • 우규환 (서울대학교 화학교육과)
  • Published : 19981000


In this study, various thermodynamic and hydrodynamic parameters characterizing the solution properties of polyethylene ionomer particles in water were determined at $30^{\circ}C$ by means of light scattering and viscosity measurements. Based on the experimental data, we investigated the solution behavior of three kinds of polyethylene ionomers, which are different in composition of the pendant ionic groups of COOK, COOH and $CONH_{2}$, and characterized their particle properties. Ionomers containing 7.6 mol% potassium salt only behave as flexible coils in a relatively good solvent state. On the other hand, two ionomers containing 3.8 mol% amide group together with potassium salt form the compact particles. In addition, the concentration dependence of the effective diffusion coefficient $(D_{eff})$ and the reduced viscosity of the latter ionomers showed the opposite trend from the former, indicating that the composition of the pendant ionic groups have a great influence on the interparticle interaction of ionomers formed in water.



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