title: Rheology of asphalts modified with glycidylmethacrylate functionalized polymers.
abstract: Asphalt is known to be a colloidal suspension in which asphaltenes are covered by a stabilizing phase of polar resins and form complex micelles that are dispersed in the oily maltenic phase. In order to enhance its mechanical properties (e.g., in road paving), asphalts are often loaded with polymeric materials, thereby obtaining blends that can have different physical or chemical structures, depending on the composition of the added polymer. Asphalts modified by the addition of reactive ethylene terpolymers were prepared and their dielectric and rheological properties were measured both before and after a cure at high temperature. Even if it is not possible to determine the exact nature of the chemical interactions between asphalt and polymer, master curves obtained from dynamic data clearly show that during the cure the material tends to the behavior of a cross-linked network.
authors.affiliation: Dipartimento di Ingegneria Chimica, Università di Pisa, Via Diotisalvi 2, 56126 Pisa, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Polacco
authors.forename: Jiri
authors.initials: J
authors.lastname: Stastna
authors.forename: Dario
authors.initials: D
authors.lastname: Biondi
authors.forename: Federico
authors.initials: F
authors.lastname: Antonelli
authors.forename: Zora
authors.initials: Z
authors.lastname: Vlachovicova
authors.forename: Ludovit
authors.initials: L
authors.lastname: Zanzotto
mesh_terms: D003102:Colloids / Q000737:chemistry; D003432:Cross-Linking Reagents; D004852:Epoxy Compounds / Q000737:chemistry*; D006838:Hydrocarbons / Q000737:chemistry*; D008689:Methacrylates / Q000737:chemistry*; D008823:Micelles; D011092:Polyethylene Glycols / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D012212:Rheology; D013696:Temperature
chemical_list: D003102:Colloids; D003432:Cross-Linking Reagents; D004852:Epoxy Compounds; D006838:Hydrocarbons; D008689:Methacrylates; D008823:Micelles; D011108:Polymers; D011092:Polyethylene Glycols; C006647:asphalt; C007870:glycidyl methacrylate