Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Fabrizio Piemontesi"'
Autor:
Finizia Auriemma, Rocco Di Girolamo, Isabella Camurati, Giovanni Talarico, Dario Liguori, Fabrizio Piemontesi, Giampiero Morini, Claudio De Rosa, Anna Malafronte, Odda Ruiz de Ballesteros, Miriam Scoti
Publikováno v:
Macromolecules. 52:9114-9127
The crystallization and thermal properties of copolymers of isotactic poly(1-butene) (iPB) with ethylene (iPBEt) synthesized with a Ziegler-Natta catalyst and ethylene (E) content between 7 and 45 mol % are presented. The crystallization properties p
Autor:
Enrico Salvadori, Fabrizio Piemontesi, Leonora Podvorica, Gianni Vitale, Mario Chiesa, Giampiero Morini
Publikováno v:
Applied Magnetic Resonance
The nature of Ti(III) species, introduced in working models of industrial Ziegler Natta catalyst precursors, consisting of MgCl2/TiCl4 binary systems, eventually containing different Lewis basis, are studied by a combination of X- and Q-band CW and p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0e807107170b72894002680b201a533
http://hdl.handle.net/2318/1765160
http://hdl.handle.net/2318/1765160
Autor:
Claudio De Rosa, Giampiero Morini, Rocco Di Girolamo, Fabrizio Piemontesi, Oreste Tarallo, Dario Liguori, Simona Esposito, Enrico M. Troisi, Gianni Vitale, Finizia Auriemma
Publikováno v:
Polymer Chemistry. 8:655-660
Innovation of the Ziegler–Natta polymerization process for polymerization of propene that allows tailoring of the mechanical properties of isotactic polypropylene (iPP) directly in the polymerization stage is presented. The catalyst is modified by
Autor:
Andrea Melchior, Yury Minenkov, Giampiero Morini, D. Liguori, Marilena Tolazzi, Raffaele Credendino, Fabrizio Piemontesi, Luigi Cavallo
Adducts of TiCl4 with Lewis bases used as internal or external donors in heterogeneous Ziegler–Natta (ZN) catalysis represent a fundamental interaction contributing to the final composition of MgCl2 supported ZN-catalysts. This study presents the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58739dbf0c96dec5539fae8033cee55f
http://hdl.handle.net/11386/4701881
http://hdl.handle.net/11386/4701881
Autor:
Finizia Auriemma, Claudio De Rosa, Giampiero Morini, Fabrizio Piemontesi, Oreste Tarallo, Simona Esposito, Rocco Di Girolamo, Dario Liguori, Anna Malafronte
A study of the nucleating effects of isotactic poly(trimethylallylsilane) (iPTMAS) and poly(vinylcyclohexane) (iPVCH) for isotactic polypropylene (iPP) and their influence on the mechanical behavior of iPP is reported. The particles of catalyst are c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6175398a74387af4bc80bf2d041bd7c0
http://hdl.handle.net/11588/688110
http://hdl.handle.net/11588/688110
Autor:
Fabrizio Piemontesi, Maurizio Galimberti, Luca Boragno, Paola Stagnaro, Maria Carmela Sacchi, Simona Losio, Giovanni C. Alfonso, Maurizio Canetti
Publikováno v:
Macromolecules
44 (2011): 3712–3722. doi:10.1021/ma102914r
info:cnr-pdr/source/autori:Stagnaro P., Boragno L., Losio S., Canetti M., Alfonso G.C., Galimberti M., Sacchi M.C./titolo:Isoselectivity and Steric Hindrance of C(2) Symmetric Metallocenes as the Keys to Control Structural and Thermal Features of Ethene%2F4-Methyl-1-Pentene Copolymers/doi:10.1021%2Fma102914r/rivista:Macromolecules (Print)/anno:2011/pagina_da:3712/pagina_a:3722/intervallo_pagine:3712–3722/volume:44
44 (2011): 3712–3722. doi:10.1021/ma102914r
info:cnr-pdr/source/autori:Stagnaro P., Boragno L., Losio S., Canetti M., Alfonso G.C., Galimberti M., Sacchi M.C./titolo:Isoselectivity and Steric Hindrance of C(2) Symmetric Metallocenes as the Keys to Control Structural and Thermal Features of Ethene%2F4-Methyl-1-Pentene Copolymers/doi:10.1021%2Fma102914r/rivista:Macromolecules (Print)/anno:2011/pagina_da:3712/pagina_a:3722/intervallo_pagine:3712–3722/volume:44
This work presents novel and, to some extent, surprising information on ethene/4-methyl-1-pentene (E/Y) copolymers prepared with C(2) symmetric single center metallocene catalysts: the moderately isopecific rac-ethylenebis-(tetrahydroindenyl)zirconiu
Publikováno v:
The Journal of Physical Chemistry C. 114:11475-11484
Infrared vibrational spectroscopy has been used to reveal the conformations of the Ziegler−Natta catalysts internal electron donor 9,9-bis(methoxymethyl)-fluorene and its selectively deuterated derivative (9,9-bis(1,1-dideutero-methoxymethyl)-fluor
Autor:
Maurizio Galimberti, Laura Alagia, Simona Losio, Maria Carmela Sacchi, Paola Stagnaro, Fabrizio Piemontesi, Luca Boragno
Publikováno v:
Journal of polymer science. Part A, Polymer chemistry 48 (2010): 2063–2075. doi:10.1002/pola.23971
info:cnr-pdr/source/autori:Galimberti M.; Piemontesi F.; Alagia L.; Losio S.; Boragno L.; Stagnaro P.; Sacchi M.C./titolo:Toward Block Copolymers from Nonliving Isospecific Single-Site Catalytic Systems/doi:10.1002%2Fpola.23971/rivista:Journal of polymer science. Part A, Polymer chemistry/anno:2010/pagina_da:2063/pagina_a:2075/intervallo_pagine:2063–2075/volume:48
Politecnico di Milano-IRIS
info:cnr-pdr/source/autori:Galimberti M.; Piemontesi F.; Alagia L.; Losio S.; Boragno L.; Stagnaro P.; Sacchi M.C./titolo:Toward Block Copolymers from Nonliving Isospecific Single-Site Catalytic Systems/doi:10.1002%2Fpola.23971/rivista:Journal of polymer science. Part A, Polymer chemistry/anno:2010/pagina_da:2063/pagina_a:2075/intervallo_pagine:2063–2075/volume:48
Politecnico di Milano-IRIS
Ethene/1-olefin blocky copolymers were obtained through nonliving insertion copolymerizations promoted by an isospecific single site catalyst. Propene or 4-methyl-1-pentene were copolymerized with ethene with metallocenes endowed with different stere
Autor:
Fabrizio Piemontesi, Giampiero Morini, Marilena Tolazzi, Andrea Melchior, Andrea Correa, Rosalisa Fedele, Jean-Marie Ducere, Luigi Cavallo
Publikováno v:
Macromolecular Symposia. 260:122-126
Calorimetric and computational investigation on the interaction of TiCl 4 with some Lewis bases (esters and ethers) is presented. The bases were chosen for their relevance in heterogeneous Ziegler-Natta polymerization of propene. Comparison of the th
Autor:
Fabrizio Piemontesi, Jean-Marie Ducere, Maria Chiara Mimmi, Luigi Cavallo, Marilena Tolazzi, Andrea Melchior, Rosalisa Fedele, Giampiero Morini
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 91:101-106
A calorimetric investigation on the reactions of TiCl4 with phthalates in 1,1,2,2-tetrachloroethane (TCE) is presented in order to better understand the complex interactions present in Ziegler-Natta catalytic systems. The Lewis bases diethyl isophtha