02030nas a2200289   4500008004100000022001400041245011700055210006900172260007600241300001400317490000800331520102100339653002101360653001301381653002101394653001901415653001401434100002601448700002001474700001601494700002301510700002001533700002001553700001801573700001801591856013101609       2007                        eng d  a0021-899500aPhotodegradation of ethylene/propylene/polar monomers, Co-, and terpolymers. II. prepared by Ni catalyst systems0 aPhotodegradation of ethylenepropylenepolar monomers Co and terpo  aCOMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USAbWILEY-BLACKWELLcMAY  a1783-17910 v1043 a<p>The copolymers of ethylene/propylene as well as their terpolymers with polar monomers were prepared by Ni-catalyst systems and their photodegradation behavior was studied by Fourier transform infrared spectroscopy. The polar monomers used to synthesize co- and terpolymers of ethylene/propylene/polar monomer were 5-hexen-1-ol, 10-undecen-1-ol, acrylamide, methylmethacrylate, acrylonitrile, and methylvinyl ketone. The morphological changes of the irradiated samples were determined by scanning electron microscopy. The photodegradation kinetics has also been studied. The surface damage caused by polychromatic irradiation (lambda &gt;= 290 nm) at 55 degrees C in atmospheric air is presented in different micrographs. The rate of photo-oxidative degradation is very fast in terpolymers containing polar monomers as compared with copolymers and homopolymers. The morphological study of the photodegraded samples showed a very good correlation with the photodegraded results. (c) 2007 Wiley Periodicals, Inc.</p>10acopolymerization10aEthylene10aPhotodegradation10apolar monomers10apropylene1 aFernandes, Susete, N.1 aCorreia, Sandra1 aMatos, Ines1 aMarques, Maria, M.1 aRana, Sravendra1 aKumar, Bijandra1 aGupta, M., K.1 aSingh, R., P.  uhttps://library.ncl.res.in/content/photodegradation-ethylenepropylenepolar-monomers-co-and-terpolymers-ii-prepared-ni-catalyst01471nas a2200229   4500008004100000022001400041245006300055210006300118260009300181300001200274490000700286520071000293653001501003653001101018653001601029653001601045653001401061100002601075700002501101700002101126856009401147       2012                        eng d  a0035-393000aAlkylation of benzene to cumene over mor zeolite catalysts0 aAlkylation of benzene to cumene over mor zeolite catalysts  aCALEA 13 SEPTEMBRIE NR 13, SECTOR 5, BUCURESTI 050711, ROMANIAbEDITURA ACAD ROMANEcFEB  a107-1130 v573 a<p>The vapor phase alkylation of benzene to cumene (isopropyl benzene) is studied over MOR (mordenite) type zeolite at different process parameters. The reaction was also studied by adopting different methodologies (pyridine poisoning, passing of moist propylene, alkali dominant mordenite, use of coked catalyst and metal impregnated zeolite) to check the nature of product distribution and the extent of activity and selectivity to alkylated product IPB, DIPB (isopropyl benzene and diisopropyl benzene) and n-PB (n-propyl benzene). It is revealed that the adoption of different methodologies affects the activity and selectivity significantly by suppressing of alkylation / isomerisation reactions.</p>10aAlkylation10acumene10aisopropanol10aMOR zeolite10apropylene1 aVyawahare, Yogesh, K.1 aChumbhale, Vilas, R.1 aAswar, Anand, S.  uhttps://library.ncl.res.in/content/alkylation-benzene-cumene-over-mor-zeolite-catalysts-0