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.
Hyperbranched polymers in cationic UV curing / SANGERMANO M.; AMERIO E.; DI GIANNI A.; PRIOLA A.; POSPIECH D.; VOIT B.. - In: MACROMOLECULAR SYMPOSIA. - ISSN 1022-1360. - 254(2007), pp. 9-15. [10.1002/masy.200750802]
|Titolo:||Hyperbranched polymers in cationic UV curing|
|Data di pubblicazione:||2007|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1002/masy.200750802|
|Appare nelle tipologie:||1.1 Articolo in rivista|