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Correlations for prediction of specific surface area and bulk and apparent densities of porous styrene-divinylbenzene copolymers

Nodehi, A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1002/app.33275
  3. Abstract:
  4. Macroporous styrene-divinylbenzene copolymers with different degree of crosslinking were prepared by suspension polymerization in presence of different binary mixtures of toluene and heptane, as diluent. Specific surface area, bulk and apparent densities, and pore volume of the resulting beads were determined experimentally. Applying the least square method to the experimental data, correlations for prediction of these properties were obtained. Effects of divinylbenzene concentration, diluent to comonomer volume ratio, and composition of the diluent mixture were considered in developing the aforementioned correlations. The influence of the reaction recipe on porous structure of the samples was also studied using scanning electron microscope (SEM)
  5. Keywords:
  6. Density ; Macroporous polymers ; Specific surface area ; Styrene-divinylbenzene ; Apparent density ; Co-monomer ; Degree of crosslinking ; Experimental data ; Least square methods ; Macroporous ; Pore volume ; Porous structures ; Scanning electron microscopes ; Styrene-divinylbenzene copolymers ; Suspension polymerization ; Volume ratio ; Binary mixtures ; Copolymerization ; Copolymers ; Least squares approximations ; Scanning electron microscopy ; Styrene ; Toluene ; Polymers
  7. Source: Journal of Applied Polymer Science ; Volume 120, Issue 4 , 2011 , Pages 1942-1949 ; 00218995 (ISSN)
  8. URL: http://onlinelibrary.wiley.com/doi/10.1002/app.33275/abstract;jsessionid=1714CB9D1F56F1C796120D5E1E5E1A2D.f03t02