02475nas a2200277   4500008004100000022001400041245014700055210006900202260008600271300001200357490000700369520144100376653001401817653001801831653002001849653002601869653002201895653002001917100001901937700001901956700001701975700001901992700002902011700002902040856012802069       2015                        eng d  a1060-132500aAmbient temperature photocopolymerization of tetrahydrofurfuryl methacrylate and isobornyl methacrylate: reactivity ratios and thermal studies0 aAmbient temperature photocopolymerization of tetrahydrofurfuryl   a530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USAbTAYLOR & FRANCIS INCcDEC  a982-9910 v523 a<p>Photocopolymerization of heterocyclic monomer namely, tetrahydrofurfuryl methacrylate with bulky bicyclic monomer, isobornyl methacrylate with different feed ratios was carried out in bulk with low concentration of an -hydroxyl ketone based photoinitiator. The ambient temperature photocopolymerization was carried out by using a UV-Visible lamp with fixed low intensity of 0.4mW cm(-2) for a period of 6min. The residual monomer remained in the polymerization process were determined by using gas chromatography. The reactivity ratio values for the two monomers were calculated from the copolymer composition data by using Fineman-Ross, Kelen-Tudos, Extended Kelen-Tudos and Mao-Huglin methods. Individually, as well as the average of all the methods revealed that the monomer reactivity ratios of tetrahydrofurfuryl methacrylate were higher than isobornyl methacrylate. The dyad sequence distribution and dyad sequence lengths were calculated using the Igarashi and Pyun method and the sequence length distribution for tetrahydrofurfuryl methacrylate was observed to be higher with an increase in its feed content. This supports the reactivity ratio studies that a higher monomer reactivity ratio value for tetrahydrofurfuryl methacrylate was observed as compared to its comonomer. The thermal studies showed that the glass transition temperatures of the copolymers increased with an increase in isobornyl methacrylate content.</p>10aCopolymer10amethacrylates10amicro structure10aphotocopolymerization10areactivity ratios10athermal studies1 aRajdeo, K., S.1 aPonrathnam, S.1 aPardeshi, S.1 aChavan, Nayaku1 aBhongale, Sunil, Sitaram1 aHarikrishna, Reghunathan  uhttp://library.ncl.res.in/content/ambient-temperature-photocopolymerization-tetrahydrofurfuryl-methacrylate-and-isobornyl-001740nas a2200241   4500008004100000022001400041245017200055210006900227260008600296300001200382490000700394520074800401653003701149653002701186653002101213653002301234653002201257653002301279100002701302700002501329700001901354856012501373       2016                        eng d  a1060-132500aSynthesis of 2-phenoxy-2-phenylethyl acrylate and copolymerization with 2-phenylethyl acrylate: estimation of monomer reactivity ratios, thermal and optical properties0 aSynthesis of 2phenoxy2phenylethyl acrylate and copolymerization   a530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USAbTAYLOR & FRANCIS INCcMAY  a457-4640 v533 a<p>A new aromatic based monomer 2-phenoxy-2-phenylethyl acrylate (PPEA) was synthesized. Copolymers of PPEA with 2-phenylethyl acrylate (PEA) were prepared by free radical polymerization. The reactivity ratios were estimated using various graphical methods. Structural parameters of the copolymers were obtained by calculating the dyad monomer sequence fractions and the mean sequence length. Optical properties of polymers such as refractive indices and UV-Visible absorption were investigated. The glass transition temperature and thermal degradation behavior of the copolymers were studied. Combined with the RI, transparency and thermal properties, prepared copolymers hold great promise as materials for intraocular lens applications.</p>10a2-Phenoxy-2-phenylethyl acrylate10a2-phenylethyl acrylate10acopolymerization10aOptical properties10areactivity ratios10aThermal properties1 aGhorpade, Ravindra, V.1 aPonrathnam, Surendra1 aChavan, Nayaku  uhttp://library.ncl.res.in/content/synthesis-2-phenoxy-2-phenylethyl-acrylate-and-copolymerization-2-phenylethyl-acrylate