This article describes for the first time the pseudo-living radical activity of 4-vinyl-1,3-dioxolane-2-one (VEC) monomer towards a free radical homo-polymerization: a kinetic study of VEC homo-polymerization was performed up to 168 hours and it was found that molecular weights, determined via gel permeation chromatography (GPC), and VEC conversion, measured via H-1 NMR spectroscopy, continue to grow over time showing a molecular weights distribution typical of pseudo-living polymerizations. Until today, in co-polymerization with styrene, just a few VEC moieties could be inserted into VEC-styrene co-polymers; in this work VEC controlled radical activity allows, for the first time, the synthesis of di-block co-polymers between styrene and vinyl groups bearing cyclic carbonate functionalities that can be used for further cross-linking reactions. VEC-styrene copolymers were synthesized with different molar ratios between co-monomers and characterized by GPC analyses and H-1 NMR spectra; excellent reaction yields and solubility in apolar solvents were obtained.
The case of 4-vinyl-1,3-dioxolane-2-one: determination of its pseudo-living behavior and preparation of allyl carbonate-styrene co-polymers / O.V. Sabatini, S. Gazzotti, H. Farina, S. Camazzola, M.A. Ortenzi. - In: CHEMISTRYSELECT. - ISSN 2365-6549. - 2:33(2017 Nov), pp. 10748-10753.
|Titolo:||The case of 4-vinyl-1,3-dioxolane-2-one: determination of its pseudo-living behavior and preparation of allyl carbonate-styrene co-polymers|
FARINA, HERMES (Secondo)
CAMAZZOLA, STEFANO (Penultimo)
ORTENZI, MARCO ALDO (Ultimo)
|Parole Chiave:||4-vinyl-1; 3-dioxolane-2-one; controlled polymerization; free radical polymerization; styrene|
|Settore Scientifico Disciplinare:||Settore CHIM/05 - Scienza e Tecnologia dei Materiali Polimerici|
|Data di pubblicazione:||nov-2017|
|Data ahead of print / Data di stampa:||nov-2017|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1002/slct.201702153|
|Appare nelle tipologie:||01 - Articolo su periodico|