Dispersion copolymerization of styrene and glycidyl methacrylate in polar solvents

Dispersion Copolymerization of Styrene and N-Vinyl Carbazole in Polar Solvents

“…With the increasing of the monomer concentration, the initial solubility parameter of system decreased, then the particle size slightly increased (Table 3), and the similar results were reported in references [7,11,12,15]. The solubility 666 YANG ET AL.…”

“…Preparation of micron-size monodispersed homopolymer particles has been extensively studied, especially polystyrene (PS) system and poly (methyl methacrylate) (PMMA) system [6][7][8][9][10]. Further study on this system was carried out by Frechet [12] et al Recently, the dispersion polymerization systems of styrene/butyl acrylate and styrene/glycidyl methacrylate in polar solvents were also studied in detail [13][14][15]. In 1987, Ober and Lok [11] prepared large monodispersed copolymer particles of styrene and n-butyl methacrylate by unseeded batch dispersion copolymerization in ethanol/water.…”

Effect of hydrophobic/hydrophilic characteristics of magnetic microspheres on the immobilization of BSA

“…In fact, the preparation of micron-size microspheres has been already widely studied, especially for polystyrene (PSt) as well as poly(Methyl Methacrylate) (PMMA) systems. Numerous literatures have reported the preparation of functionalized polystyrene microspheres by using other vinyl comonomers [8][9][10][11][12]. For all these applications, the magnetic microspheres not only were biocompatible but also possessed some advantages such as re-usable, easy separation and so on.…”

Latex Particles

“…The solubility parameters for the continuous phase have been calculated in the following two examples and, indeed, the expected difference in the behavior for nonpolar and polar monomers has been experimentally observed. First, for copolymerizations of styrene and glycidyl methacrylate (a 12/3 weight mixture, which is nonpolar) in ethanol±water mixtures with poly(vinyl pyrrolidone) as stabilizer and 2,2'-azobisisobutyronitrile as initiator the average particle size decreases with increasing solubility parameter of the continuous phase [183]. The second example is dispersion polymerization of 2-hydroxyethyl methacrylate, a polar monomer, in mixtures of toluene with higher alcohols such as methylpropan-1-ol or butan-2-ol with cellulose acetate butyrate as stabilizer and dibenzoyl peroxide as initiator.…”