{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,9,14]],"date-time":"2023-09-14T02:25:40Z","timestamp":1694658340523},"reference-count":52,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2008,9,26]],"date-time":"2008-09-26T00:00:00Z","timestamp":1222387200000},"content-version":"vor","delay-in-days":25,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Macromolecular Symposia"],"published-print":{"date-parts":[[2008,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A general kinetic approach allowing the prediction of the molecular architecture of non\u2010linear polymers is applied to the study of the copolymerization of methyl methacrylate (MMA) with ethylene glycol dimethacrylate (EGDMA). Dynamic predictions of molecular weight distributions, sequence length distributions and mean square radius of gyration are possible before and after gelation. A set of experiments concerning the copolymerization of MMA and EGDMA was carried out in toluene solution at 60\u2009\u00b0C for which classic radical kinetics is a good approximation. The time evolution of key polymer properties was followed using a SEC system with a refractive index detector coupled with MALLS allowing the determination of absolute weight average molecular weight and apparent molecular size distributions as well as <jats:italic>z<\/jats:italic>\u2010average radius of gyration. Special focus was given to assess the influence of the initial amount of cross\u2010linker on the dynamics of the non\u2010linear structure build\u2010up of these products. A kinetic scheme comprising 23 different chemical species and 76 chemical reactions was used in the modeling studies of this chemical system. Most of the kinetic parameters used in the simulations have been collected from previous studies. For experiments at low monomer conversion (up to about 0.5) a good agreement between predictions and experimental measurements is observed for molecular weights and <jats:italic>z<\/jats:italic>\u2010average radius of gyration by fitting a small number of parameters describing gel effect (with a conversion dependent but chain length independent termination rate parameter) and the relative propagation on pendant double bonds. However, predicted values of weight\u2010average molecular weights and <jats:italic>z<\/jats:italic>\u2010average radius of gyration before gelation are too low at higher monomer conversions with non\u2010linear systems. The likely cause is the presence of intramolecular reactions which should not be neglected in these circumstances.<\/jats:p>","DOI":"10.1002\/masy.200851112","type":"journal-article","created":{"date-parts":[[2008,9,26]],"date-time":"2008-09-26T18:06:54Z","timestamp":1222452414000},"page":"107-119","source":"Crossref","is-referenced-by-count":9,"title":["Molecular Architecture of Non\u2010Linear Polymers: Kinetic Modeling and Experimental Characterization of the System Methyl Methacrylate\u2009<b>+<\/b>\u2009Ethylene Glycol Dimethacrylate"],"prefix":"10.1002","volume":"271","author":[{"given":"Ivone M. R.","family":"Trigo","sequence":"first","affiliation":[]},{"given":"Miguel A. D.","family":"Gon\u00e7alves","sequence":"additional","affiliation":[]},{"given":"Rolando C. S.","family":"Dias","sequence":"additional","affiliation":[]},{"given":"M\u00e1rio Rui P. F. 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