Archivio Istituzionale della RicercaA wide range of hyperbranched polymers (HBP) was synthesized and investigated as additives in cationic photopolymerization of epoxy systems. The HBP were inserted into the polymeric network either by a copolymerization or through a chain transfer reaction involving the phenolic hydroxyl groups. By varying the type and concentration of HBP a modification of the bulk properties of photocured films was induced. An increase of toughness properties together with a flexibilization was obtained without affecting the processability and the viscosity of the photocurable mixture. In the presence of fluorine-containing HBP, a surface modification was induced.
Hyperbranched polymers in cationic UV curing / Sangermano, Marco; Amerio, Ezio; DI GIANNI, Anna; Priola, Aldo; Pospiech, D.; Voit, B.. - In: MACROMOLECULAR SYMPOSIA. - ISSN 1022-1360. - 254:(2007), pp. 9-15. [10.1002/masy.200750802]
Hyperbranched polymers in cationic UV curing
SANGERMANO, MARCO;AMERIO, EZIO;DI GIANNI, ANNA;PRIOLA, ALDO;
2007
Abstract
A wide range of hyperbranched polymers (HBP) was synthesized and investigated as additives in cationic photopolymerization of epoxy systems. The HBP were inserted into the polymeric network either by a copolymerization or through a chain transfer reaction involving the phenolic hydroxyl groups. By varying the type and concentration of HBP a modification of the bulk properties of photocured films was induced. An increase of toughness properties together with a flexibilization was obtained without affecting the processability and the viscosity of the photocurable mixture. In the presence of fluorine-containing HBP, a surface modification was induced.
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https://hdl.handle.net/11583/1652276
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