Final version of the full paper for the presented ECCE - 6 abstract
نویسندگان
چکیده
Paraffin wax was microencapsulated by suspension polymerization with a polymer shell of methylmetacrylate (MMA)-styrene (St) copolymer. The influence of the copolymer/paraffin mass ratio and the MMA/St mass ratio on the encapsulation process and the physical properties of the microcapsules obtained were studied. It was observed that paraffin is difficultly encapsulated when the ratio polymer/paraffin was lower than 2.5, as a consequence of a shortage of copolymer that could not completely cover the amount of paraffin added. When a large proportion of monomer was employed the polymer trends to polymerize outside the bead in a segregated way. As the amount of MMA increases, the reaction time decreases and the mean particle size decreases.
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NORMAL 6-VALENT CAYLEY GRAPHS OF ABELIAN GROUPS
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