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Synthesis and characterization of poly(4-oxyalkylenoxy benzoate)s of different chain length (Articolo in rivista)

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Synthesis and characterization of poly(4-oxyalkylenoxy benzoate)s of different chain length (Articolo in rivista) (literal)

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V.Siracusa, N.Lotti, C.Puglisi, F.Samperi, A.Munari, L.Finelli, S.Battiato (2009)
Synthesis and characterization of poly(4-oxyalkylenoxy benzoate)s of different chain length
in E-Polymers
(literal)

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V.Siracusa, N.Lotti, C.Puglisi, F.Samperi, A.Munari, L.Finelli, S.Battiato (literal)

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CNR, Istituto di chimica e tecnologia dei polimeri Università di Catania Università di Bologna (literal)

Titolo

Synthesis and characterization of poly(4-oxyalkylenoxy benzoate)s of different chain length (literal)

Abstract

Three different monomers starting from p-(4-hydroxy)benzoic acid and 3-chloro-1-propanol,4-chloro-1-butanol and 6-chloro-1-hexanol, respectively, were synthesized and extensively characterized by means of 1H and 13C NMR, MALDI-TOF MS and elemental analysis. Subsequently, poly(4-oxyalkylenoxy benzoate)s polymers with different chain length were prepared in bulk starting from the mentioned above monomers, employing Ti(OBu)4 as catalyst, according to the usual two-stage polymerization procedure. The polymers were characterized in terms of chemical structure, molecular mass and thermal behaviour. Tg, Tm and the ability to crystallize were found to be affected by the number of methylene groups per repeat unit and the results were explained mainly on the basis of the increment of the chain flexibility. (literal)

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