@article {Reddy:March 2008:1385-772X:159, author = "Reddy, Ramana G.V.", author = "Thomas, Juby", author = "Radhakrishnan, P.K.", title = "Microemulsion and Conventional Emulsion Co-polymerizations of p-Methyl Styrene with Methyl Methacrylate", journal = "Designed Monomers & Polymers", volume = "11", year = "March 2008", abstract = "Microemulsion (ME) and conventional emulsion (CE) co-polymerization of p-methyl styrene (pMSTY) with methyl methacrylate (MMA) are carried out at 70°C using n-pentanol (PA) and n-hexanol (HA), respectively, as co-surfactants along with sodium lauryl sulphate (SLS) as surfactant in the reaction media, and potassium persulphate (KPS) as initiator. The co-polymers are characterized by NMR and GPC techniques. The reactivity ratios are evaluated by employing Fineman-Ross (F-R), Kelen-Tüdös (K-T) and Mayo-Lewis integration (M-L-I) methods. The K-T method yields the reactivity ratios 0.68 ± 0.02 (rpMSTY), 0.40 ± 0.02 (rMMA), 0.68 ± 0.02 (rpMSTY) and 0.68 ± 0.02 (rMMA), respectively, for the ME and CE co-polymerizations of pMSTY and MMA with PA as co-surfactant in the reaction media. The K-T method yields the reactivity ratios 1.09 ± 0.02 (rpMSTY), 0.37 ± 0.02 (rMMA) and 0.78 ± 0.02 (rpMSTY) and 0.54 ± 0.02 (rMMA), respectively, for the ME and CE co-polymerization of pMSTY and MMA with HA as co-surfactant in the reaction media.", pages = "159-171(13)", url = "http://www.ingentaconnect.com/content/vsp/dmp/2008/00000011/00000002/art00005" doi = "doi:10.1163/156855508X298062" }